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OpenStack stuff | OpenStack, Docker, Ansible, Ceph, Linux .In this blog post I will show how to deploy OpenStack Tacker with Service Function Chaining (SFC) with OpenStack kolla project and make a few verifications and tests to ensure fully NFV and SFC functionality. Tacker and SFC is only supported in kolla during Pike release or later. Tacker, NFV and SFC concepts Tacker is an OpenStack service for NFV Orchestration with a general purpose VNF Manager to deploy and operate Virtual Network Functions (VNFs) and Network Services on an NFV Platform. It is based on ETSI MANO Architectural Framework. Tacker documentation Network functions virtualization (NFV) is a network architecture concept that uses the technologies of IT virtualization to virtualize entire classes of network node functions into building blocks that may connect, or chain together, to create communication services. ETSI NFV specs Service Function Chaining is a mechanism for overriding the basic destination based forwarding that is typical of IP networks. It is conceptually related to Policy Based Routing in physical networks but it is typically thought of as a Software Defined Networking technology. It is often used in conjunction with security functions although it may be used for a broader range of features. ETSI SFC spec Kolla Kolla is a highly opinionated deployment tool out of the box. This permits Kolla to be deployable with the simple configuration of three key/value pairs. As an operator's experience with OpenStack grows and the desire to customize OpenStack services increases, Kolla offers full capability to override every OpenStack service configuration option in the deployment. kolla documentation Requirements Kolla depends on the following requirements to be met for a fully operational multinode OpenStack cluster with Tacker and SFC features: Core compute stack (nova, neutron, glance, etc) Heat Mistral and Redis Barbican Networking-sfc Deployment Install base kolla and dependencies following kolla's quickstart guide Configure globals.yml and enable services in requirements, optionally other services can be enabled altogether. Refer to kolla documentation for other option/values information. $ vi /etc/kolla/globals.yml --- kolla_base_distro: "centos" kolla_install_type: "source" kolla_internal_vip_address: "192.168.100.10" docker_registry: "192.168.100.1:4000" docker_namespace: "lokolla" network_interface: "ens9" neutron_external_interface: "ens10" # Tacker configuration enable_tacker: "yes" enable_neutron_sfc: "yes" enable_mistral: "yes" enable_redis: "yes" enable_barbican: "yes" #enable_heat: "yes" # Ensure it is not disabled Configure inventory file. $ vi [control] 192.168.100.244 192.168.100.186 192.168.100.159 [network] 192.168.100.244 192.168.100.186 192.168.100.159 [compute] 192.168.100.130 192.168.100.131 192.168.100.132 [monitoring] 192.168.100.244 192.168.100.186 192.168.100.159 [storage] 192.168.100.244 192.168.100.186 192.168.100.159 Generate passwords $ kolla-genpwd Deploy OpenStack. $ kolla-ansible -i ~/multinode deploy Once deployment finish, generate credential file and create base networks and a cirros image. $ kolla-ansible -i ~/multinode post-deploy $ source /etc/kolla/admin-openrc.sh $ sh init-runonce Tacker and SFC demo In kolla-ansible repository a tacker demo is present. Tacker demo $ cd /contrib/demos/tacker/ $ ls -l total 16 -rw-r--r-- 1 root root 615 Aug 24 20:21 cleanup-tacker -rw-r--r-- 1 root root 1937 Aug 24 20:21 deploy-tacker-demo -rw-r--r-- 1 root root 2649 Aug 24 20:21 deploy-tacker-demo-sfc -rw-r--r-- 1 root root 396 Aug 18 13:53 README.rst Before starting the demo, install tacker and networking-sfc clients. $ pip install python-tackerclient networking-sfc Demo description Tacker demo for SFC will create the following resources: Tacker default VIM Tacker VNFD Tacker VNF kolla_sfc_client instance with a floating IP kolla_sfc_server instance with a floating IP Tacker VNFFGD Tacker VNFFG After demo is deployed will be able to: Create sample web server in kolla_sfc_server instance. Request web service from kolla_sfc_client Traffic flows: Request from kolla_sfc_client instance Tacker VNF instance will receive the traffic and redirect to kolla_sfc_server kolla_sfc_server instance receive request and reply with "W00t from Kolla HTTP server!" message. Execute tacker demo In tacker demo directory initialize execution. $ sh deploy-tacker-demo-sfc Generating sample config Registering sample VIM Created a new vim: +----------------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ | Field | Value | +----------------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ | auth_cred | {"username": "admin", "password": "***", "project_name": "admin", "user_domain_name": "Default", "key_type": "barbican_key", "secret_uuid": "***", "auth_url": ", "project_id": null, "project_domain_name": "Default"} | | auth_url | | | created_at | 2017-08-28 08:49:01.385013 | | description | kolla sample vim | | id | 0cb20dff-b6d2-44ab-9124-cdeb018269a2 | | is_default | True | | name | kolla-sample-vim | | placement_attr | {"regions": ["RegionOne"]} | | status | PENDING | | tenant_id | 9fb078d4c7e54a92b3068eb5c0f83ec5 | | type | openstack | | updated_at | | | vim_project | {"name": "admin", "project_domain_name": "Default"} | +----------------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ Creating sample VNFD Created a new vnfd: +-----------------+--------------------------------------+ | Field | Value | +-----------------+--------------------------------------+ | created_at | 2017-08-28 08:49:03.915848 | | description | Demo example | | id | d9633774-f9a4-492c-8055-ff3b2bc08581 | | name | kolla-sample-vnfd | | service_types | vnfd | | template_source | onboarded | | tenant_id | 9fb078d4c7e54a92b3068eb5c0f83ec5 | | updated_at | | +-----------------+--------------------------------------+ Creating sample VNF Created a new vnf: +----------------+--------------------------------------+ | Field | Value | +----------------+--------------------------------------+ | created_at | 2017-08-28 08:49:08.921243 | | description | Demo example | | error_reason | | | id | a3f73d1b-6d6b-44c9-a6ef-a808f12bc633 | | instance_id | 57246b92-fdf2-416f-921a-6760e05c74b4 | | mgmt_url | | | name | kolla-sample-vnf | | placement_attr | {"vim_name": "kolla-sample-vim"} | | status | PENDING_CREATE | | tenant_id | 9fb078d4c7e54a92b3068eb5c0f83ec5 | | updated_at | | | vim_id | 0cb20dff-b6d2-44ab-9124-cdeb018269a2 | | vnfd_id | d9633774-f9a4-492c-8055-ff3b2bc08581 | +----------------+--------------------------------------+ Creating SFC demo instances +-------------------------------------+----------------------------------------------------------+ | Field | Value | +-------------------------------------+----------------------------------------------------------+ | OS-DCF:diskConfig | MANUAL | | OS-EXT-AZ:availability_zone | nova | | OS-EXT-SRV-ATTR:host | controller | | OS-EXT-SRV-ATTR:hypervisor_hostname | controller | | OS-EXT-SRV-ATTR:instance_name | instance-0000000c | | OS-EXT-STS:power_state | Running | | OS-EXT-STS:task_state | None | | OS-EXT-STS:vm_state | active | | OS-SRV-USG:launched_at | 2017-08-28T08:50:00.000000 | | OS-SRV-USG:terminated_at | None | | accessIPv4 | | | accessIPv6 | | | addresses | demo-net=10.0.0.3 | | adminPass | HGW57Pe5r8pC | | config_drive | | | created | 2017-08-28T08:49:41Z | | flavor | m1.tiny (1) | | hostId | bec7629dd00bde2fd03ac3c939eea34fa1a2f7e4a6f8337b0e08bca4 | | id | 90304f68-6b38-4753-b0c2-a62835abebde | | image | cirros (f0a80381-2bd0-4c53-8300-377a7e4bf065) | | key_name | None | | name | kolla_sfc_server | | progress | 0 | | project_id | 9fb078d4c7e54a92b3068eb5c0f83ec5 | | properties | | | security_groups | name='default' | | status | ACTIVE | | updated | 2017-08-28T08:50:00Z | | user_id | 2d948bf4056c4e0d878a0f3f4765d3f9 | | volumes_attached | | +-------------------------------------+----------------------------------------------------------+ +-------------------------------------+----------------------------------------------------------+ | Field | Value | +-------------------------------------+----------------------------------------------------------+ | OS-DCF:diskConfig | MANUAL | | OS-EXT-AZ:availability_zone | nova | | OS-EXT-SRV-ATTR:host | compute1 | | OS-EXT-SRV-ATTR:hypervisor_hostname | compute1 | | OS-EXT-SRV-ATTR:instance_name | instance-0000000e | | OS-EXT-STS:power_state | Running | | OS-EXT-STS:task_state | None | | OS-EXT-STS:vm_state | active | | OS-SRV-USG:launched_at | 2017-08-28T08:50:31.000000 | | OS-SRV-USG:terminated_at | None | | accessIPv4 | | | accessIPv6 | | | addresses | demo-net=10.0.0.7 | | adminPass | ZhQQG2vsetkV | | config_drive | | | created | 2017-08-28T08:50:12Z | | flavor | m1.tiny (1) | | hostId | 95d62e067390ab4fbaaebf971f9cc70c98c371532b6f9bfa08389fee | | id | e126fd2f-bdca-4e78-abc0-f0a2d4739a30 | | image | cirros (f0a80381-2bd0-4c53-8300-377a7e4bf065) | | key_name | None | | name | kolla_sfc_client | | progress | 0 | | project_id | 9fb078d4c7e54a92b3068eb5c0f83ec5 | | properties | | | security_groups | name='default' | | status | ACTIVE | | updated | 2017-08-28T08:50:31Z | | user_id | 2d948bf4056c4e0d878a0f3f4765d3f9 | | volumes_attached | | +-------------------------------------+----------------------------------------------------------+ Tacker SFC config files Creating VNFFGD Created a new vnffgd: +-----------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ | Field | Value | +-----------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ | description | | | id | 97d9f9e9-f9c3-45b6-9050-000226d37ec9 | | name | kolla-sample-vnffgd | | template | {"vnffgd": {"imports": ["/var/lib/kolla/venv/lib/python2.7/site-packages/tacker/tosca/lib/tacker_defs.yaml", "/var/lib/kolla/venv/lib/python2.7/site-packages/tacker/tosca/lib/tacker_nfv_defs.yaml"], "description": "Sample VNFFG template", "topology_template": {"node_templates": {"Forwarding_path1": {"type": "tosca.nodes.nfv.FP.Tacker", "description": "creates path (CP12->CP12)", "properties": {"policy": {"type": "ACL", "criteria": [{"network_src_port_id": "2779e692-f979-467c-81ae-34a176e12ed4"}, {"network_id": "9ab78f83-40b7-4435-be5c-eb40de435793"}, {"ip_proto": 6}, {"destination_port_range": "80-80"}]}, "path": [{"capability": "CP11", "forwarder": "kolla-sample-vnfd"}], "id": 51}}}, "description": "Sample VNFFG template", "groups": {"VNFFG1": {"type": "tosca.groups.nfv.VNFFG", "description": "HTTP to Corporate Net", "members": ["Forwarding_path1"], "properties": {"vendor": "tacker", "connection_point": ["CP11"], "version": 1.0, "constituent_vnfs": ["kolla-sample-vnfd"], "number_of_endpoints": 1, "dependent_virtual_link": ["VL1"]}}}}, "tosca_definitions_version": "tosca_simple_profile_for_nfv_1_0_0"}} | | template_source | onboarded | | tenant_id | 9fb078d4c7e54a92b3068eb5c0f83ec5 | +-----------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ Creating VNFFG Created a new vnffg: +------------------+---------------------------------------------------------------+ | Field | Value | +------------------+---------------------------------------------------------------+ | description | | | forwarding_paths | cff3d46e-9544-4775-82c3-0ac3c1f3864c | | id | a1e2a010-0c64-40ad-a54a-96d7e9d8e6a5 | | name | kolla-sample-vnffg | | status | PENDING_CREATE | | tenant_id | 9fb078d4c7e54a92b3068eb5c0f83ec5 | | vnf_mapping | {"kolla-sample-vnfd": "a3f73d1b-6d6b-44c9-a6ef-a808f12bc633"} | | vnffgd_id | 97d9f9e9-f9c3-45b6-9050-000226d37ec9 | +------------------+---------------------------------------------------------------+ Tacker sfc client floating ip address: 192.168.150.102 Tacker sfc server floating ip address: 192.168.150.110 Done. To create simple HTTP server in tacker_sfc_server instance run: ssh [email protected] 'while true; \\ do echo -e "HTTP/1.0 200 OK\\r\\n\\r\\nW00t from Kolla HTTP server!" | sudo nc -l -p 80 ; done &' Once finished, script will show server and client floating IP addresses, also a sample command to start a basic HTTP server in tacker_sfc_server instance. Validate resources Verify tacker resources are created. $ tacker vim-list +--------------------------------------+----------------------------------+------------------+-----------+------------+------------------------------+-----------+ | id | tenant_id | name | type | is_default | placement_attr | status | +--------------------------------------+----------------------------------+------------------+-----------+------------+------------------------------+-----------+ | 0cb20dff-b6d2-44ab-9124-cdeb018269a2 | 9fb078d4c7e54a92b3068eb5c0f83ec5 | kolla-sample-vim | openstack | True | {u'regions': [u'RegionOne']} | REACHABLE | +--------------------------------------+----------------------------------+------------------+-----------+------------+------------------------------+-----------+ $ tacker vnf-list +--------------------------------------+------------------+-----------------------+--------+--------------------------------------+--------------------------------------+ | id | name | mgmt_url | status | vim_id | vnfd_id | +--------------------------------------+------------------+-----------------------+--------+--------------------------------------+--------------------------------------+ | a3f73d1b-6d6b-44c9-a6ef-a808f12bc633 | kolla-sample-vnf | {"VDU1": "10.0.0.12"} | ACTIVE | 0cb20dff-b6d2-44ab-9124-cdeb018269a2 | d9633774-f9a4-492c-8055-ff3b2bc08581 | +--------------------------------------+------------------+-----------------------+--------+--------------------------------------+--------------------------------------+ $ tacker vnfd-list +--------------------------------------+-------------------+-----------------+--------------+ | id | name | template_source | description | +--------------------------------------+-------------------+-----------------+--------------+ | d9633774-f9a4-492c-8055-ff3b2bc08581 | kolla-sample-vnfd | onboarded | Demo example | +--------------------------------------+-------------------+-----------------+--------------+ Verify nova and heat resources are created. $ openstack server list +--------------------------------------+-------------------------------------------------------+--------+------------------------------------+--------+-----------------------------------------------------------------------------------------------------------------------+ | ID | Name | Status | Networks | Image | Flavor | +--------------------------------------+-------------------------------------------------------+--------+------------------------------------+--------+-----------------------------------------------------------------------------------------------------------------------+ | e126fd2f-bdca-4e78-abc0-f0a2d4739a30 | kolla_sfc_client | ACTIVE | demo-net=10.0.0.7, 192.168.150.102 | cirros | m1.tiny | | 90304f68-6b38-4753-b0c2-a62835abebde | kolla_sfc_server | ACTIVE | demo-net=10.0.0.3, 192.168.150.110 | cirros | m1.tiny | | 61e2ec3a-444f-4048-bc8d-a599e29e14bd | ta-3d1b-6d6b-44c9-a6ef-a808f12bc633-VDU1-hvpraqctwpm7 | ACTIVE | demo-net=10.0.0.12 | cirros | tacker.vnfm.infra_drivers.openstack.openstack_OpenStack-a3f73d1b-6d6b-44c9-a6ef-a808f12bc633-VDU1_flavor-4vsmp3jlvilk | +--------------------------------------+-------------------------------------------------------+--------+------------------------------------+--------+-----------------------------------------------------------------------------------------------------------------------+ $ openstack stack list +--------------------------------------+----------------------------------------------------------------------------------------------+----------------------------------+-----------------+----------------------+--------------+ | ID | Stack Name | Project | Stack Status | Creation Time | Updated Time | +--------------------------------------+----------------------------------------------------------------------------------------------+----------------------------------+-----------------+----------------------+--------------+ | 57246b92-fdf2-416f-921a-6760e05c74b4 | tacker.vnfm.infra_drivers.openstack.openstack_OpenStack-a3f73d1b-6d6b-44c9-a6ef-a808f12bc633 | 9fb078d4c7e54a92b3068eb5c0f83ec5 | CREATE_COMPLETE | 2017-08-28T08:49:11Z | None | +--------------------------------------+----------------------------------------------------------------------------------------------+----------------------------------+-----------------+----------------------+--------------+ Verify networking-sfc resources. $ openstack sfc port chain list +--------------------------------------+-------------------------------+-------------------------------------------+-------------------------------------------+------------------------------------------------+ | ID | Name | Port Pair Groups | Flow Classifiers | Chain Parameters | +--------------------------------------+-------------------------------+-------------------------------------------+-------------------------------------------+------------------------------------------------+ | ec35dfac-dc9d-40b8-8103-b510761753ae | kolla-sample-vnffg-port-chain | [u'9b73262f-f25d-400b-8aff-062d66a3bd76'] | [u'063231fc-f697-4bd9-bfb6-b89f89ff6117'] | {u'symmetric': False, u'correlation': u'mpls'} | +--------------------------------------+-------------------------------+-------------------------------------------+-------------------------------------------+------------------------------------------------+ $ openstack sfc port chain show kolla-sample-vnffg-port-chain +------------------+------------------------------------------------+ | Field | Value | +------------------+------------------------------------------------+ | chain_id | 1 | | chain_parameters | {u'symmetric': False, u'correlation': u'mpls'} | | description | port-chain for Tacker VNFFG | | flow_classifiers | [u'063231fc-f697-4bd9-bfb6-b89f89ff6117'] | | id | ec35dfac-dc9d-40b8-8103-b510761753ae | | name | kolla-sample-vnffg-port-chain | | port_pair_groups | [u'9b73262f-f25d-400b-8aff-062d66a3bd76'] | | project_id | 9fb078d4c7e54a92b3068eb5c0f83ec5 | +------------------+------------------------------------------------+ $ openstack sfc port pair group list +--------------------------------------+----------------------------------+-------------------------------------------+---------------------------------------------------------------------------------------------+ | ID | Name | Port Pair | Port Pair Group Parameters | +--------------------------------------+----------------------------------+-------------------------------------------+---------------------------------------------------------------------------------------------+ | 9b73262f-f25d-400b-8aff-062d66a3bd76 | kolla-sample-vnf-port-pair-group | [u'bb944348-2610-4068-8c87-9288904edf11'] | {u'lb_fields': [], u'ppg_n_tuple_mapping': {u'ingress_n_tuple': {}, u'egress_n_tuple': {}}} | +--------------------------------------+----------------------------------+-------------------------------------------+---------------------------------------------------------------------------------------------+ $ openstack sfc port pair group show kolla-sample-vnf-port-pair-group +----------------------------+---------------------------------------------------------------------------------------------+ | Field | Value | +----------------------------+---------------------------------------------------------------------------------------------+ | description | port pair group for kolla-sample-vnf | | group_id | 1 | | id | 9b73262f-f25d-400b-8aff-062d66a3bd76 | | name | kolla-sample-vnf-port-pair-group | | port_pair_group_parameters | {u'lb_fields': [], u'ppg_n_tuple_mapping': {u'ingress_n_tuple': {}, u'egress_n_tuple': {}}} | | port_pairs | [u'bb944348-2610-4068-8c87-9288904edf11'] | | project_id | 9fb078d4c7e54a92b3068eb5c0f83ec5 | +----------------------------+---------------------------------------------------------------------------------------------+ $ openstack sfc flow classifier list +--------------------------------------+------+----------+-----------+----------------+--------------------------------------+--------------------------+ | ID | Name | Protocol | Source-IP | Destination-IP | Logical-Source-Port | Logical-Destination-Port | +--------------------------------------+------+----------+-----------+----------------+--------------------------------------+--------------------------+ | 063231fc-f697-4bd9-bfb6-b89f89ff6117 | | tcp | None | None | 2779e692-f979-467c-81ae-34a176e12ed4 | None | +--------------------------------------+------+----------+-----------+----------------+--------------------------------------+--------------------------+ $ openstack sfc flow classifier show 063231fc-f697-4bd9-bfb6-b89f89ff6117 +----------------------------+--------------------------------------+ | Field | Value | +----------------------------+--------------------------------------+ | description | | | destination_ip_prefix | None | | destination_port_range_max | 80 | | destination_port_range_min | 80 | | ethertype | IPv4 | | id | 063231fc-f697-4bd9-bfb6-b89f89ff6117 | | l7_parameters | {} | | logical_destination_port | None | | logical_source_port | 2779e692-f979-467c-81ae-34a176e12ed4 | | name | | | project_id | 9fb078d4c7e54a92b3068eb5c0f83ec5 | | protocol | tcp | | source_ip_prefix | None | | source_port_range_max | None | | source_port_range_min | None | +----------------------------+--------------------------------------+ Verify traffic flows Execute the command to create a sample web server in tacker_sfc_server. $ ssh [email protected] 'while true; \\ > do echo -e "HTTP/1.0 200 OK\\r\\n\\r\\nW00t from Kolla HTTP server!" | sudo nc -l -p 80 ; done &' The authenticity of host '192.168.150.110 (192.168.150.110)' can't be established. RSA key fingerprint is c6:14:b1:d9:84:b5:83:54:47:8e:20:eb:81:a2:f7:62. Are you sure you want to continue connecting (yes/no)? yes Warning: Permanently added '192.168.150.110' (RSA) to the list of known hosts. [email protected]'s password: Connect to tacker_sfc_client through the floating IP address $ ssh [email protected] The authenticity of host '192.168.150.102 (192.168.150.102)' can't be established. RSA key fingerprint is 5e:51:88:93:70:90:0e:24:55:81:47:b4:d6:28:4b:f9. Are you sure you want to continue connecting (yes/no)? yes Warning: Permanently added '192.168.150.102' (RSA) to the list of known hosts. [email protected]'s password: Curl to tacker_sfc_server internal/fixed IP address. Should receive "W00t from Kolla HTTP server!" message $ curl W00t from Kolla HTTP server! Find hypervisor where tacker VNF instance is running. $ openstack server list -c Name -c Host -c Networks -c Status --long +-------------------------------------------------------+--------+------------------------------------+------------+ | Name | Status | Networks | Host | +-------------------------------------------------------+--------+------------------------------------+------------+ | kolla_sfc_client | ACTIVE | demo-net=10.0.0.7, 192.168.150.102 | compute1 | | kolla_sfc_server | ACTIVE | demo-net=10.0.0.3, 192.168.150.110 | controller | | ta-3d1b-6d6b-44c9-a6ef-a808f12bc633-VDU1-hvpraqctwpm7 | ACTIVE | demo-net=10.0.0.12 | compute1 | +-------------------------------------------------------+--------+------------------------------------+------------+ Find tacker VNF instance port ID $ openstack port list --server ta-3d1b-6d6b-44c9-a6ef-a808f12bc633-VDU1-hvpraqctwpm7 -c ID +--------------------------------------+ | ID | +--------------------------------------+ | e5da60a7-a348-4bee-a52a-96ae33b53a26 | +--------------------------------------+ In the host where the instance is running, locate the tap interface. Tap interface is tap. Start tcpdump in port 80 in the tap interface. $ tcpdump port 80 -eni tape5da60a7-a3 tcpdump: WARNING: tape5da60a7-a3: no IPv4 address assigned tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on tape5da60a7-a3, link-type EN10MB (Ethernet), capture size 65535 bytes Now curl again from tacker_sfc_client instance. $ curl W00t from Kolla HTTP server! In the tcpdump should see traffic flowing to tacker_sfc_server from tacker_sfc_client 10:18:39.207908 fa:16:3e:6d:65:14 > fa:16:3e:2f:3e:90, ethertype IPv4 (0x0800), length 74: 10.0.0.7.40475 > 10.0.0.3.http: Flags [S], seq 3060324847, win 14100, options [mss 1410,sackOK,TS val 346030 ecr 0,nop,wscale 3], length 0 10:18:39.209263 fa:16:3e:2f:3e:90 > fa:16:3e:d7:6f:3b, ethertype IPv4 (0x0800), length 74: 10.0.0.7.40475 > 10.0.0.3.http: Flags [S], seq 3060324847, win 14100, options [mss 1410,sackOK,TS val 346030 ecr 0,nop,wscale 3], length 0 10:18:39.214001 fa:16:3e:6d:65:14 > fa:16:3e:2f:3e:90, ethertype IPv4 (0x0800), length 66: 10.0.0.7.40475 > 10.0.0.3.http: Flags [.], ack 2793310193, win 1763, options [nop,nop,TS val 346032 ecr 352982], length 0 10:18:39.214924 fa:16:3e:2f:3e:90 > fa:16:3e:d7:6f:3b, ethertype IPv4 (0x0800), length 66: 10.0.0.7.40475 > 10.0.0.3.http: Flags [.], ack 1, win 1763, options [nop,nop,TS val 346032 ecr 352982], length 0 10:18:39.222308 fa:16:3e:6d:65:14 > fa:16:3e:2f:3e:90, ethertype IPv4 (0x0800), length 201: 10.0.0.7.40475 > 10.0.0.3.http: Flags [P.], seq 0:135, ack 1, win 1763, options [nop,nop,TS val 346034 ecr 352982], length 135 10:18:39.222333 fa:16:3e:6d:65:14 > fa:16:3e:2f:3e:90, ethertype IPv4 (0x0800), length 66: 10.0.0.7.40475 > 10.0.0.3.http: Flags [.], ack 49, win 1763, options [nop,nop,TS val 346034 ecr 352983], length 0 10:18:39.224660 fa:16:3e:2f:3e:90 > fa:16:3e:d7:6f:3b, ethertype IPv4 (0x0800), length 201: 10.0.0.7.40475 > 10.0.0.3.http: Flags [P.], seq 0:135, ack 1, win 1763, options [nop,nop,TS val 346034 ecr 352982], length 135 10:18:39.224773 fa:16:3e:2f:3e:90 > fa:16:3e:d7:6f:3b, ethertype IPv4 (0x0800), length 66: 10.0.0.7.40475 > 10.0.0.3.http: Flags [.], ack 49, win 1763, options [nop,nop,TS val 346034 ecr 352983], length 0 10:18:39.250113 fa:16:3e:6d:65:14 > fa:16:3e:2f:3e:90, ethertype IPv4 (0x0800), length 66: 10.0.0.7.40475 > 10.0.0.3.http: Flags [F.], seq 135, ack 50, win 1763, options [nop,nop,TS val 346041 ecr 352990], length 0 10:18:39.252871 fa:16:3e:2f:3e:90 > fa:16:3e:d7:6f:3b, ethertype IPv4 (0x0800), length 66: 10.0.0.7.40475 > 10.0.0.3.http: Flags [F.], seq 135, ack 50, win 1763, options [nop,nop,TS val 346041 ecr 352990], length 0 Check br-int ovs flows. $ docker exec openvswitch_db ovs-ofctl dump-flows br-int NXST_FLOW reply (xid=0x4): cookie=0x4d21ac58ca610153, duration=1952.266s, table=0, n_packets=20, n_bytes=1892, idle_age=300, priority=30,tcp,in_port=4,nw_src=10.0.0.7,tp_dst=80 actions=NORMAL cookie=0x4d21ac58ca610153, duration=1951.781s, table=0, n_packets=20, n_bytes=1892, idle_age=300, priority=30,tcp,in_port=5,nw_src=10.0.0.7,tp_dst=80 actions=group:1 cookie=0x4d21ac58ca610153, duration=3824.910s, table=0, n_packets=0, n_bytes=0, idle_age=3824, priority=20,mpls actions=resubmit(,10) cookie=0x5efe7af1c4c4da43, duration=1986.768s, table=0, n_packets=0, n_bytes=0, idle_age=1986, priority=10,icmp6,in_port=5,icmp_type=136 actions=resubmit(,24) cookie=0x5efe7af1c4c4da43, duration=1986.765s, table=0, n_packets=9, n_bytes=378, idle_age=296, priority=10,arp,in_port=5 actions=resubmit(,24) cookie=0x5efe7af1c4c4da43, duration=1986.771s, table=0, n_packets=151, n_bytes=16475, idle_age=300, priority=9,in_port=5 actions=resubmit(,25) cookie=0x5efe7af1c4c4da43, duration=3828.290s, table=0, n_packets=575, n_bytes=63516, idle_age=296, priority=0 actions=resubmit(,60) cookie=0x4d21ac58ca610153, duration=1952.498s, table=5, n_packets=20, n_bytes=1892, idle_age=300, priority=0,ip,dl_dst=fa:16:3e:2f:3e:90 actions=push_mpls:0x8847,load:0x1ff->OXM_OF_MPLS_LABEL[],set_mpls_ttl(255),mod_vlan_vid:2,resubmit(,10) cookie=0x4d21ac58ca610153, duration=1951.976s, table=10, n_packets=20, n_bytes=1892, idle_age=300, priority=1,mpls,dl_vlan=2,dl_dst=fa:16:3e:2f:3e:90,mpls_label=511 actions=strip_vlan,pop_mpls:0x0800,output:4 cookie=0x4d21ac58ca610153, duration=3824.909s, table=10, n_packets=0, n_bytes=0, idle_age=3824, priority=0 actions=drop cookie=0x5efe7af1c4c4da43, duration=3828.292s, table=23, n_packets=0, n_bytes=0, idle_age=3828, priority=0 actions=drop cookie=0x5efe7af1c4c4da43, duration=1986.769s, table=24, n_packets=0, n_bytes=0, idle_age=1986, priority=2,icmp6,in_port=5,icmp_type=136,nd_target=fe80::f816:3eff:fe6d:6514 actions=resubmit(,60) cookie=0x5efe7af1c4c4da43, duration=1986.766s, table=24, n_packets=9, n_bytes=378, idle_age=296, priority=2,arp,in_port=5,arp_spa=10.0.0.7 actions=resubmit(,25) cookie=0x5efe7af1c4c4da43, duration=3828.286s, table=24, n_packets=0, n_bytes=0, idle_age=3828, priority=0 actions=drop cookie=0x5efe7af1c4c4da43, duration=1986.774s, table=25, n_packets=159, n_bytes=16783, idle_age=296, priority=2,in_port=5,dl_src=fa:16:3e:6d:65:14 actions=resubmit(,60) cookie=0x5efe7af1c4c4da43, duration=3828.287s, table=60, n_packets=836, n_bytes=90430, idle_age=296, priority=3 actions=NORMAL Check br-tun ovs flows. $ docker exec openvswitch_db ovs-ofctl dump-flows br-tun NXST_FLOW reply (xid=0x4): cookie=0xf206a4cf831522bb, duration=3829.004s, table=0, n_packets=514, n_bytes=51389, idle_age=299, priority=1,in_port=1 actions=resubmit(,2) cookie=0xf206a4cf831522bb, duration=2049.122s, table=0, n_packets=111, n_bytes=13035, idle_age=299, priority=1,in_port=4 actions=resubmit(,4) cookie=0xf206a4cf831522bb, duration=2049.077s, table=0, n_packets=99, n_bytes=12561, idle_age=1976, priority=1,in_port=5 actions=resubmit(,4) cookie=0xf206a4cf831522bb, duration=3829.003s, table=0, n_packets=0, n_bytes=0, idle_age=3829, priority=0 actions=drop cookie=0xf206a4cf831522bb, duration=3829.001s, table=2, n_packets=14, n_bytes=588, idle_age=303, priority=1,arp,dl_dst=ff:ff:ff:ff:ff:ff actions=resubmit(,21) cookie=0xf206a4cf831522bb, duration=3828.999s, table=2, n_packets=444, n_bytes=44273, idle_age=299, priority=0,dl_dst=00:00:00:00:00:00/01:00:00:00:00:00 actions=resubmit(,20) cookie=0xf206a4cf831522bb, duration=3828.998s, table=2, n_packets=56, n_bytes=6528, idle_age=1971, priority=0,dl_dst=01:00:00:00:00:00/01:00:00:00:00:00 actions=resubmit(,22) cookie=0xf206a4cf831522bb, duration=3828.997s, table=3, n_packets=0, n_bytes=0, idle_age=3828, priority=0 actions=drop cookie=0xf206a4cf831522bb, duration=2051.673s, table=4, n_packets=210, n_bytes=25596, idle_age=299, priority=1,tun_id=0x35 actions=mod_vlan_vid:2,resubmit(,10) cookie=0xf206a4cf831522bb, duration=3828.996s, table=4, n_packets=0, n_bytes=0, idle_age=3828, priority=0 actions=drop cookie=0xf206a4cf831522bb, duration=3828.995s, table=6, n_packets=0, n_bytes=0, idle_age=3828, priority=0 actions=drop cookie=0xf206a4cf831522bb, duration=3828.994s, table=10, n_packets=322, n_bytes=39749, idle_age=299, priority=1 actions=learn(table=20,hard_timeout=300,priority=1,cookie=0xf206a4cf831522bb,NXM_OF_VLAN_TCI[0..11],NXM_OF_ETH_DST[]=NXM_OF_ETH_SRC[],load:0->NXM_OF_VLAN_TCI[],load:NXM_NX_TUN_ID[]->NXM_NX_TUN_ID[],output:OXM_OF_IN_PORT[]),output:1 cookie=0xf206a4cf831522bb, duration=2045.177s, table=20, n_packets=60, n_bytes=7135, idle_age=299, priority=2,dl_vlan=2,dl_dst=fa:16:3e:dd:b9:4d actions=strip_vlan,load:0x35->NXM_NX_TUN_ID[],output:4 cookie=0xf206a4cf831522bb, duration=2045.168s, table=20, n_packets=180, n_bytes=17440, idle_age=1976, priority=2,dl_vlan=2,dl_dst=fa:16:3e:71:84:df actions=strip_vlan,load:0x35->NXM_NX_TUN_ID[],output:5 cookie=0xf206a4cf831522bb, duration=2019.366s, table=20, n_packets=20, n_bytes=1892, idle_age=303, priority=2,dl_vlan=2,dl_dst=fa:16:3e:d7:6f:3b actions=strip_vlan,load:0x35->NXM_NX_TUN_ID[],output:4 cookie=0xf206a4cf831522bb, duration=304.629s, table=20, n_packets=0, n_bytes=0, hard_timeout=300, idle_age=304, hard_age=299, priority=1,vlan_tci=0x0002/0x0fff,dl_dst=fa:16:3e:dd:b9:4d actions=load:0->NXM_OF_VLAN_TCI[],load:0x35->NXM_NX_TUN_ID[],output:4 cookie=0xf206a4cf831522bb, duration=3828.992s, table=20, n_packets=0, n_bytes=0, idle_age=3828, priority=0 actions=resubmit(,22) cookie=0xf206a4cf831522bb, duration=2045.180s, table=21, n_packets=2, n_bytes=84, idle_age=1974, priority=1,arp,dl_vlan=2,arp_tpa=10.0.0.1 actions=load:0x2->NXM_OF_ARP_OP[],move:NXM_NX_ARP_SHA[]->NXM_NX_ARP_THA[],move:NXM_OF_ARP_SPA[]->NXM_OF_ARP_TPA[],load:0xfa163eddb94d->NXM_NX_ARP_SHA[],load:0xa000001->NXM_OF_ARP_SPA[],move:NXM_OF_ETH_SRC[]->NXM_OF_ETH_DST[],mod_dl_src:fa:16:3e:dd:b9:4d,IN_PORT cookie=0xf206a4cf831522bb, duration=2045.170s, table=21, n_packets=2, n_bytes=84, idle_age=1979, priority=1,arp,dl_vlan=2,arp_tpa=10.0.0.2 actions=load:0x2->NXM_OF_ARP_OP[],move:NXM_NX_ARP_SHA[]->NXM_NX_ARP_THA[],move:NXM_OF_ARP_SPA[]->NXM_OF_ARP_TPA[],load:0xfa163e7184df->NXM_NX_ARP_SHA[],load:0xa000002->NXM_OF_ARP_SPA[],move:NXM_OF_ETH_SRC[]->NXM_OF_ETH_DST[],mod_dl_src:fa:16:3e:71:84:df,IN_PORT cookie=0xf206a4cf831522bb, duration=2019.369s, table=21, n_packets=4, n_bytes=168, idle_age=303, priority=1,arp,dl_vlan=2,arp_tpa=10.0.0.3 actions=load:0x2->NXM_OF_ARP_OP[],move:NXM_NX_ARP_SHA[]->NXM_NX_ARP_THA[],move:NXM_OF_ARP_SPA[]->NXM_OF_ARP_TPA[],load:0xfa163ed76f3b->NXM_NX_ARP_SHA[],load:0xa000003->NXM_OF_ARP_SPA[],move:NXM_OF_ETH_SRC[]->NXM_OF_ETH_DST[],mod_dl_src:fa:16:3e:d7:6f:3b,IN_PORT cookie=0xf206a4cf831522bb, duration=3828.991s, table=21, n_packets=2, n_bytes=84, idle_age=303, priority=0 actions=resubmit(,22) cookie=0xf206a4cf831522bb, duration=2045.174s, table=22, n_packets=20, n_bytes=2512, idle_age=303, priority=1,dl_vlan=2 actions=strip_vlan,load:0x35->NXM_NX_TUN_ID[],output:4,output:5 cookie=0xf206a4cf831522bb, duration=3828.990s, table=22, n_packets=20, n_bytes=1672, idle_age=1994, priority=0 actions=drop Once Tacker and SFC is verified, all resources can be deleted. $ sh cleanup-tacker Deleting VNFFG All specified vnffg(s) deleted successfully Deleting VNFFGD All specified vnffgd(s) deleted successfully Deleting sample sfc instances Deleting sample VNF All specified vnf(s) delete initiated successfully Deleting sample VNFD All specified vnfd(s) deleted successfully Deleting sample VIM All specified vim(s) deleted successfully Removing sample config In following posts will show how to tacker templates works and an in deep sfc traffic flows analysis. Regards, Eduardo Gonzalez .openstack,tacker,sfc,mistral,barbican,heat,service function chaining,kolla,ansible,nfv,mano,sdn,etsi,pike

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VIRTUALIZA DESDE ZERO | Formación online en Vmware y Openstack .La mejor formación online en virtualización y Cloud Computing. Blog con la información más detallada y actualizada sobre Vmware y Openstack. .

Kubernauts | The Cloud Cosmonauts (The Kubernetes, OpenShift, OpenStack and Cloud Foundry Advocates) .The Kubernetes and Cloud-Native Advocates .Kubernetes, OpenShift, Cloud-Native, Cloud Computing, OpenStack, Cloud Foundry, Containers, Docker

Public Cloud auf OpenStack – Open Telekom Cloud .Buchen Sie unsere IaaS-Lösung auf Basis von OpenStack aus den deutschen Rechenzentren. Verschiedene Open Telekom Cloud Produkte erhalten Sie zu den Themen: Computing, Speicher (Storage), Netz und Sicherheit. .Infrastructure as a Service, IaaS, Open Telekom Cloud, Computing, Storage, Sicherheit, Connectivity, Network, Management

High Performance OpenStack Cloud Computing Solutions | Vexxhost .Our OpenStack Cloud Computing services are used to support demanding requirements and workloads. We currently have active customers in over 70 different countries. .

Soluções em Data Center, Cloud Computing e Servidores Dedicados - EVEO Enterprise Cloud .Conheça o Data Center Virtual OpenStack e entre no mundo da infraestrutura como serviço (IaaS). Monte seu Data Center em minutos, sem precisar comprar nenhum equipamento. .data center, cloud computing, servidores dedicados, hospedagem cloud, cloud server, servidor cloud, revenda cloud, container cloud, email cloud, openstack, openshift

Aprendiendo a Virtualizar - Blog de Gorka Izquierdo Bizkarrondo sobre VMware, OpenStack, AWS, GNU Linux, Hyper-v, Nakivo, Vembu .Blog de Gorka Izquierdo Bizkarrondo sobre VMware, OpenStack, AWS, GNU Linux, Hyper-v, Nakivo, Vembu .

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Cursos Online Cloud Computing: VMware, AWS, Azure, Openstack .Somos líderes en cursos de cloud computing online con VMware, Amazon AWS, OpenStack y Azure. ¡Más de 11.000 ingenieros han tomado nuestros cursos! .

IntoVPS facebook account .IntoVPS provides reliable unmanaged VPS hosting at competitive prices. VPS hosting packages are based on OpenStack/KVM and available in US and Europe. .openstack vps hosting, kvm vps plans, unmaaged vps hosting, competitive prices

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Nephos6 - Index . .Cloud,OpenStack,IPv6,Monitoring,Service assurance,Cloud monitoring,IPv6 monitoring,OpenStack troubleshooting,SaaS,IaaS,IPv6 transition,Cloud adoption

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Desde lo alto, en el bunker. | Administración de sistemas. Adrián Jiménez Blanes. .Administración de sistemas. Adrián Jiménez Blanes. .

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Leonardo Borda - A bit of everything and answers that really work! .Leonardo Borda, A bit of everything and answers that really work! Articles about Linux, Ubuntu, Openstack, Cloud Computing and life .Cloud, Leonardo Borda, Openstack, Apache, vdi to vmdk, virtualbox, linux, php, nagios, monitoring

OpenStack Private und Public Cloud Lösungen von teutoStack .teutoStack bietet Ihnen die optimale Erfahrung beim Einstieg in die Welt von OpenStack. Lassen Sie sich bei uns individuell und professionell beraten. .

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Alchelabo Empowering Your Cloud - Risorse “as a Service” con OpenStack .La tua ambizione è considerare l’IT una commodity e soddisfare i tuoi utenti con risorse “as a Service” con OpenStack? Vieni a conoscere Alchelabo! .

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DataCenter-Insider - das Rechenzentrums-Fachportal zu Software Defined Datacenter, Kühlung, USV, RZ-Netze, Tools, Applikationen, Middleware, OpenStack, Private Cloud, Virtualisierung .Tipps, Wissen und Information zu Rechenzentren, Virtualisierung und Software Defined Datacenter: Tools und Anwendungen, IT- und RZ-Infrastruktur von USV bis zu Rechenzentrums-Kühlung, Hardware, Software, Services, Hyperkonvergenz und Hybrid Cloud .RZ-Hardware, -Software, -Services, -Design, -Admin, Colocation, Rechenzentrum, Datacenter, USV, PDU, Energieeffizienz, private und hybride Cloud, Virtualisierung, Server, Tool, Applikation, Rechenzentrumsbau, -betrieb, -planung, Konvergenz, Award

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LinMin Snapshot Manager - Bare Metal Provisioning, Cloning &, Rollback using Imaging and Scripting for Linux, Windows, BSD & Hypervisors .LinMin Snapshot Manager lets you manage your physical systems running Windows, Linux & BSD as if they were virtual machines: bare metal provisioning, cloning, rollback & more using LSM RAM Agent technology, imaging & scripting on Intel x86-based systems .LinMin Snapshot Manager, LinMin Bare Metal Provisioning, Bare Metal Imaging, server deployment, server provisioning, PXE server, bare metal server, windows server provisioning, linux server deployment, data center roll-out, Cisco Server Provisioner, cloud provisioning, LBMP, WDS, RIS, Windows Unattended, hosting automation software, dedicated server, install Red Hat, CentOS, Ubuntu, Debian, SUSE, SLES, Oracle Linux, KVM, Fedora, Windows Server 2019 2016 2012 2008 , WS2019 WS2016 WS2012 WS 2008, w2k8, w2k19 w2k16 w2k12, Windows 7 8 XP, disk image, Backup, restore, Disaster Recovery, clone, cloning, OS Installation, server consolidation, LinMin, openstack, Cobbler, puppet, chef, ansible, salt, Clonezilla, Clonezilla-live, provision ESXi, Xen, Hyper-V, PaaS, SaaS, IaaS, data center provisioning, appliance builder, computer deployment

GoLinuxCloud | Inspiring Minds .Tutorials and Guides from real time and production environment on topics including Linux, OpenStack, Docker, Kubernetes, Storage, Networking, Security .

Blog Virtualización y Cloud Computing en Español .Encontraras información, manuales y videos tutoriales sobre Virtualización y Cloud Computing de VMware, Amazon AWS, OpenStack. ¡Te ayudamos a certificarte! .

Cloud Migration Between Cloud Storage Providers | Cloudsfer Cloud Data Migration .Cloud migration between cloud storage providers. First 5GB Free! Cloud file transfer, Google file transfer, Backup Facebook, transfer Dropbox to Google drive, Instagram, OneDrive, DropBox, Flickr, Alibaba, Openstack, Picasa and more! Sync cloud services, Migrate cloud data, Copy cloud storage and more with ease. .

The Nutanix Bible .The Nutanix Bible - A detailed narrative of the Nutanix architecture, how the software and features work and how to leverage it for maximum performance. .nutanix, nutanix bible,nutanix architecture, prism, acropolis,nutanix openstack, webscale

Ales Nosek - The Software Practitioner .This year’s Red Hat Summit is going to be hosted in Boston on May 7-9, 2019. I will be co-presenting on the topic: Using Domain-driven Design … .

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Latest Posts – Welcome to my life. .Describe this nonsense. .

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Cloud Knowledge Base and Cloud Admin Tutorials .Cloud Knowledge Base and Cloud Admin Tutorials with Example. Hypervisor and Virtualization Technologies in Hybrid Cloud, VMware, OpenStack and DevOps Articles. .

Oh My Stack .A technique blog sharing my notes and thoughts. -- JiangJun .jiang jun, 江骏, jiangjun1990, 任我骏驰, cloud, docker, openstack, salt

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Red Hat Acquires Permabit Assets, Eases Barriers to Cloud Portability with Data Deduplication Technology .Red Hat, Inc. (NYSE: RHT), the world's leading provider of open source solutions, today announced that it has acquired the assets and technology of Permabit Technology Corporation, a provider of software for data deduplication, compression and thin provisioning. With the addition of Permabit’s data deduplication and compression capabilities to the world’s leading enterprise Linux platform, Red Hat Enterprise Linux, Red Hat will be able to better enable enterprise digital transformation through more efficient storage options.As more enterprises move towards adopting the efficiencies offered by digital technologies like Linux containers and cloud computing, being able to run these services and store the resulting data requires new storage needs outside of what is offered by traditional storage technologies. Storage efficiency is a key piece in addressing these needs, particularly with the emergence of hyperconverged infrastructure (HCI) which blends storage and compute onto a single x86 server. Enterprise-class, open source solutions can help to address the storage challenges posed by these digitally transformative technologies by using software to increase the amount of storage available to applications without increasing the amount of physical storage.With Permabit’s technology, Red Hat can now bring powerful data deduplication and compression features into Red Hat Enterprise Linux itself, which will also enhance capabilities across Red Hat’s hybrid cloud and storage technologies, including Red Hat OpenStack Platform, Red Hat OpenShift Container Platform and Red Hat Storage. Consistent with its commitment to delivering fully open source solutions and upstream-first innovation, Red Hat plans to open source Permabit’s technology. This will enable customers to use a single, supported and fully-open platform to drive storage efficiency, without having to rely on heterogeneous tools or customized and poorly-supported operating systems.The transaction is expected to have no material impact to Red Hat’s guidance for its second fiscal quarter ending Aug. 31, 2017, or fiscal year ending Feb. 28, 2018.Supporting QuoteJim Totton, vice president and general manager, Red Hat“Digitally-transformative technologies, including cloud infrastructure, Linux containers and hyper-converged infrastructure, require enterprises to re-examine overlooked or previously commoditized technology decisions, especially storage, to gain as many efficiencies as possible for business evolution. With the addition of Permabit’s data deduplication and compression tools to Red Hat Enterprise Linux, Red Hat will be ready to support these organizations as they seek to derive a more efficient storage footprint to power business innovation.” .

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CLSN博客 - 高效运维探索者 .CLSN博客(原: 惨绿少年博客)是一位IT运维从业者的从业经历中整理形成，由运维基本功、云计算、数据库、网络技术等分类组成，涵盖了Liunx教程、运维经验、脚本Shell、云计算、虚拟化、监控以、网络技术等。 .CLSN,惨绿少年,运维社区,高效运维在行动,clsn.io,惨绿少年linux,zabbix,keepalived,nginx,tomcat,jumpserver,shell,openstack

Fuga Cloud: #1 European OpenStack Cloud - Computing and Cloud Services .Fuga Cloud is an IaaS provider and delivers Cloud Computing, Storage, ObjectStore and Networking. Easy to contact, SLA 99,99% Uptime, ISO certified. .

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