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>
12 lines
623 B
Django/Jinja
12 lines
623 B
Django/Jinja
ETCD_DATA_DIR=/var/lib/etcd
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ETCD_ADVERTISE_CLIENT_URLS={{ etcd_client_url }}
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ETCD_INITIAL_ADVERTISE_PEER_URLS={{ etcd_peer_url }}
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ETCD_INITIAL_CLUSTER_STATE={% if etcd_cluster_is_healthy.rc != 0 | bool %}new{% else %}existing{% endif %}
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ETCD_LISTEN_CLIENT_URLS=http://{{ etcd_address }}:2379
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ETCD_ELECTION_TIMEOUT=10000
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ETCD_INITIAL_CLUSTER_TOKEN=k8s_etcd
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ETCD_LISTEN_PEER_URLS=http://{{ etcd_address }}:2380
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ETCD_NAME={{ etcd_member_name }}
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ETCD_PROXY=off
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ETCD_INITIAL_CLUSTER={% for host in groups['etcd'] %}etcd{{ loop.index|string }}={{ hostvars[host]['etcd_peer_url'] }}{% if not loop.last %},{% endif %}{% endfor %}
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