32cd6e99b2
* Enforce a etcd-proxy role to a k8s-cluster group members. This provides an HA layout for all of the k8s cluster internal clients. * Proxies to be run on each node in the group as a separate etcd instances with a readwrite proxy mode and listen the given endpoint, which is either the access_ip:2379 or the localhost:2379. * A notion for the 'kube_etcd_multiaccess' is: ignore endpoints and loadbalancers and use the etcd members IPs as a comma-separated list. Otherwise, clients shall use the local endpoint provided by a etcd-proxy instances on each etcd node. A Netwroking plugins always use that access mode. * Fix apiserver's etcd servers args to use the etcd_access_endpoint. * Fix networking plugins flannel/calico to use the etcd_endpoint. * Fix name env var for non masters to be set as well. * Fix etcd_client_url was not used anywhere and other etcd_* facts evaluation was duplicated in a few places. * Define proxy modes only in the env file, if not a master. Del an automatic proxy mode decisions for etcd nodes in init/unit scripts. * Use Wants= instead of Requires= as "This is the recommended way to hook start-up of one unit to the start-up of another unit" * Make apiserver/calico Wants= etcd-proxy to keep it always up Signed-off-by: Bogdan Dobrelya <bdobrelia@mirantis.com> Co-authored-by: Matthew Mosesohn <mmosesohn@mirantis.com>
45 lines
1.7 KiB
YAML
45 lines
1.7 KiB
YAML
---
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- name: Configure | Check if member is in cluster
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shell: "etcdctl --peers={{ etcd_access_addresses }} member list | grep -q {{ etcd_access_address }}"
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register: etcd_member_in_cluster
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ignore_errors: true
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changed_when: false
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when: is_etcd_master
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- name: Configure | Add member to the cluster if it is not there
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when: is_etcd_master and etcd_member_in_cluster.rc != 0 and etcd_cluster_is_healthy.rc == 0
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shell: "etcdctl --peers={{ etcd_access_addresses }} member add {{ etcd_member_name }} {{ etcd_peer_url }}"
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- name: Configure | Copy etcd.service systemd file
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template:
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src: "etcd-{{ etcd_deployment_type }}.service.j2"
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dest: /etc/systemd/system/etcd.service
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backup: yes
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when: ansible_service_mgr == "systemd" and is_etcd_master
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notify: restart etcd
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- name: Configure | Write etcd initd script
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template:
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src: "deb-etcd-{{ etcd_deployment_type }}.initd.j2"
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dest: /etc/init.d/etcd
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owner: root
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mode: 0755
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when: ansible_service_mgr in ["sysvinit","upstart"] and ansible_os_family == "Debian" and is_etcd_master
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notify: restart etcd
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- name: Configure | Copy etcd-proxy.service systemd file
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template:
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src: "etcd-proxy-{{ etcd_deployment_type }}.service.j2"
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dest: /etc/systemd/system/etcd-proxy.service
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backup: yes
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when: ansible_service_mgr == "systemd" and is_etcd_proxy
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notify: restart etcd-proxy
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- name: Configure | Write etcd-proxy initd script
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template:
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src: "deb-etcd-proxy-{{ etcd_deployment_type }}.initd.j2"
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dest: /etc/init.d/etcd-proxy
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owner: root
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mode: 0755
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when: ansible_service_mgr in ["sysvinit","upstart"] and ansible_os_family == "Debian" and is_etcd_proxy
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notify: restart etcd-proxy
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