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contiv network support (#1914) * Add Contiv support Contiv is a network plugin for Kubernetes and Docker. It supports vlan/vxlan/BGP/Cisco ACI technologies. It support firewall policies, multiple networks and bridging pods onto physical networks. * Update contiv version to 1.1.4 Update contiv version to 1.1.4 and added SVC_SUBNET in contiv-config. * Load openvswitch module to workaround on CentOS7.4 * Set contiv cni version to 0.1.0 Correct contiv CNI version to 0.1.0. * Use kube_apiserver_endpoint for K8S_API_SERVER Use kube_apiserver_endpoint as K8S_API_SERVER to make contiv talks to a available endpoint no matter if there's a loadbalancer or not. * Make contiv use its own etcd Before this commit, contiv is using a etcd proxy mode to k8s etcd, this work fine when the etcd hosts are co-located with contiv etcd proxy, however the k8s peering certs are only in etcd group, as a result the etcd-proxy is not able to peering with the k8s etcd on etcd group, plus the netplugin is always trying to find the etcd endpoint on localhost, this will cause problem for all netplugins not runnign on etcd group nodes. This commit make contiv uses its own etcd, separate from k8s one. on kube-master nodes (where net-master runs), it will run as leader mode and on all rest nodes it will run as proxy mode. * Use cp instead of rsync to copy cni binaries Since rsync has been removed from hyperkube, this commit changes it to use cp instead. * Make contiv-etcd able to run on master nodes * Add rbac_enabled flag for contiv pods * Add contiv into CNI network plugin lists * migrate contiv test to tests/files Signed-off-by: Cristian Staretu <cristian.staretu@gmail.com> * Add required rules for contiv netplugin * Better handling json return of fwdMode * Make contiv etcd port configurable * Use default var instead of templating * roles/download/defaults/main.yml: use contiv 1.1.7 Signed-off-by: Cristian Staretu <cristian.staretu@gmail.com>
7 years ago
  1. ---
  2. - name: Contiv | Load openvswitch kernel module
  3. copy:
  4. dest: /etc/modules-load.d/openvswitch.conf
  5. content: "openvswitch"
  6. notify:
  7. - Contiv | Reload kernel modules
  8. - name: Contiv | Create contiv etcd directories
  9. file:
  10. dest: "{{ item }}"
  11. state: directory
  12. mode: 0750
  13. owner: root
  14. group: root
  15. with_items:
  16. - "{{ contiv_etcd_conf_dir }}"
  17. - "{{ contiv_etcd_data_dir }}"
  18. - name: Contiv | Create contiv etcd config env
  19. template:
  20. src: contiv-etcd.env.j2
  21. dest: "{{ contiv_etcd_conf_dir }}/contiv-etcd.env"
  22. - set_fact:
  23. contiv_config_dir: "{{ contiv_config_dir }}"
  24. contiv_enable_api_proxy: "{{ contiv_enable_api_proxy }}"
  25. contiv_fabric_mode: "{{ contiv_fabric_mode }}"
  26. contiv_fwd_mode: "{{ contiv_fwd_mode }}"
  27. contiv_netmaster_port: "{{ contiv_netmaster_port }}"
  28. contiv_networks: "{{ contiv_networks }}"
  29. contiv_manifests:
  30. - {name: contiv-config, file: contiv-config.yml, type: configmap}
  31. - {name: contiv-netmaster, file: contiv-netmaster-clusterrolebinding.yml, type: clusterrolebinding}
  32. - {name: contiv-netmaster, file: contiv-netmaster-clusterrole.yml, type: clusterrole}
  33. - {name: contiv-netmaster, file: contiv-netmaster-serviceaccount.yml, type: serviceaccount}
  34. - {name: contiv-netplugin, file: contiv-netplugin-clusterrolebinding.yml, type: clusterrolebinding}
  35. - {name: contiv-netplugin, file: contiv-netplugin-clusterrole.yml, type: clusterrole}
  36. - {name: contiv-netplugin, file: contiv-netplugin-serviceaccount.yml, type: serviceaccount}
  37. - {name: contiv-etcd, file: contiv-etcd.yml, type: daemonset}
  38. - {name: contiv-netplugin, file: contiv-netplugin.yml, type: daemonset}
  39. - {name: contiv-netmaster, file: contiv-netmaster.yml, type: daemonset}
  40. - set_fact:
  41. contiv_manifests: |-
  42. {% set _ = contiv_manifests.append({"name": "contiv-api-proxy", "file": "contiv-api-proxy.yml", "type": "daemonset"}) %}
  43. {{ contiv_manifests }}
  44. when: contiv_enable_api_proxy
  45. - name: Contiv | Create /var/contiv
  46. file:
  47. path: /var/contiv
  48. state: directory
  49. - name: Contiv | Create contiv config directory
  50. file:
  51. dest: "{{ contiv_config_dir }}"
  52. state: directory
  53. mode: 0755
  54. owner: root
  55. group: root
  56. - name: Contiv | Install all Kubernetes resources
  57. template:
  58. src: "{{ item.file }}.j2"
  59. dest: "{{ contiv_config_dir }}/{{ item.file }}"
  60. with_items: "{{ contiv_manifests }}"
  61. delegate_to: "{{ groups['kube-master'][0] }}"
  62. run_once: true
  63. register: contiv_manifests_results
  64. - name: Contiv | Generate contiv-api-proxy certificates
  65. script: generate-certificate.sh
  66. args:
  67. creates: /var/contiv/auth_proxy_key.pem
  68. when: "contiv_enable_api_proxy and contiv_generate_certificate"
  69. delegate_to: "{{ groups['kube-master'][0] }}"
  70. run_once: true
  71. - name: Contiv | Fetch the generated certificate
  72. fetch:
  73. src: "/var/contiv/{{ item }}"
  74. dest: "/tmp/kubespray-contiv-{{ item }}"
  75. flat: yes
  76. with_items:
  77. - auth_proxy_key.pem
  78. - auth_proxy_cert.pem
  79. when: "contiv_enable_api_proxy and contiv_generate_certificate"
  80. delegate_to: "{{ groups['kube-master'][0] }}"
  81. run_once: true
  82. - name: Contiv | Copy the generated certificate on nodes
  83. copy:
  84. src: "/tmp/kubespray-contiv-{{ item }}"
  85. dest: "/var/contiv/{{ item }}"
  86. with_items:
  87. - auth_proxy_key.pem
  88. - auth_proxy_cert.pem
  89. when: "inventory_hostname != groups['kube-master'][0]
  90. and inventory_hostname in groups['kube-master']
  91. and contiv_enable_api_proxy and contiv_generate_certificate"
  92. - name: Contiv | Copy cni plugins from hyperkube
  93. command: "{{ docker_bin_dir }}/docker run --rm -v /opt/cni/bin:/cnibindir {{ hyperkube_image_repo }}:{{ hyperkube_image_tag }} /bin/bash -c '/bin/cp -a /opt/cni/bin/* /cnibindir/'"
  94. register: cni_task_result
  95. until: cni_task_result.rc == 0
  96. retries: 4
  97. delay: "{{ retry_stagger | random + 3 }}"
  98. changed_when: false
  99. tags: [hyperkube, upgrade]
  100. - name: Contiv | Copy netctl binary from docker container
  101. command: sh -c "{{ docker_bin_dir }}/docker rm -f netctl-binarycopy;
  102. {{ docker_bin_dir }}/docker create --name netctl-binarycopy {{ contiv_image_repo }}:{{ contiv_image_tag }} &&
  103. {{ docker_bin_dir }}/docker cp netctl-binarycopy:/contiv/bin/netctl {{ bin_dir }}/netctl &&
  104. {{ docker_bin_dir }}/docker rm -f netctl-binarycopy"
  105. register: contiv_task_result
  106. until: contiv_task_result.rc == 0
  107. retries: 4
  108. delay: "{{ retry_stagger | random + 3 }}"
  109. changed_when: false