fd83ec6526
* 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>
19 lines
378 B
Django/Jinja
19 lines
378 B
Django/Jinja
[Unit]
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Description=etcd-proxy
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After=network.target
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[Service]
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Type=notify
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User=etcd
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PermissionsStartOnly=true
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EnvironmentFile=/etc/etcd-proxy.env
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ExecStart={{ bin_dir }}/etcd
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ExecStartPre=/bin/mkdir -p /var/lib/etcd-proxy
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ExecStartPre=/bin/chown -R etcd: /var/lib/etcd-proxy
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NotifyAccess=all
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Restart=always
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RestartSec=10s
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LimitNOFILE=40000
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[Install]
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WantedBy=multi-user.target
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