kubespray/roles/etcd/templates/etcd.env.j2

# Environment file for etcd {{ etcd_version }}
ETCD_DATA_DIR={{ etcd_data_dir }}
ETCD_ADVERTISE_CLIENT_URLS={{ etcd_client_url }}
ETCD_INITIAL_ADVERTISE_PEER_URLS={{ etcd_peer_url }}
ETCD_INITIAL_CLUSTER_STATE={% if etcd_cluster_is_healthy.rc == 0 | bool %}existing{% else %}new{% endif %}

ETCD_METRICS={{ etcd_metrics }}
{% if etcd_metrics_port is defined %}
ETCD_LISTEN_METRICS_URLS=http://{{ etcd_address }}:{{ etcd_metrics_port }},http://127.0.0.1:{{ etcd_metrics_port }}
{% endif %}
ETCD_LISTEN_CLIENT_URLS=https://{{ etcd_address }}:2379,https://127.0.0.1:2379
ETCD_ELECTION_TIMEOUT={{ etcd_election_timeout }}
ETCD_HEARTBEAT_INTERVAL={{ etcd_heartbeat_interval }}
ETCD_INITIAL_CLUSTER_TOKEN=k8s_etcd
ETCD_LISTEN_PEER_URLS=https://{{ etcd_address }}:2380
ETCD_NAME={{ etcd_member_name }}
ETCD_PROXY=off
ETCD_INITIAL_CLUSTER={{ etcd_peer_addresses }}
ETCD_AUTO_COMPACTION_RETENTION={{ etcd_compaction_retention }}
{% if etcd_snapshot_count is defined %}
ETCD_SNAPSHOT_COUNT={{ etcd_snapshot_count }}
{% endif %}
{% if etcd_quota_backend_bytes is defined %}
ETCD_QUOTA_BACKEND_BYTES={{ etcd_quota_backend_bytes }}
{% endif %}
{% if etcd_log_package_levels is defined %}
ETCD_LOG_PACKAGE_LEVELS={{ etcd_log_package_levels }}
{% endif %}
{% if etcd_max_snapshots is defined %}
ETCD_MAX_SNAPSHOTS={{ etcd_max_snapshots }}
{% endif %}
{% if etcd_max_wals is defined %}
ETCD_MAX_WALS={{ etcd_max_wals }}
{% endif %}
# Flannel need etcd v2 API
ETCD_ENABLE_V2=true

# TLS settings
ETCD_TRUSTED_CA_FILE={{ etcd_cert_dir }}/ca.pem
ETCD_CERT_FILE={{ etcd_cert_dir }}/member-{{ inventory_hostname }}.pem
ETCD_KEY_FILE={{ etcd_cert_dir }}/member-{{ inventory_hostname }}-key.pem
ETCD_CLIENT_CERT_AUTH={{ etcd_secure_client | lower}}

ETCD_PEER_TRUSTED_CA_FILE={{ etcd_cert_dir }}/ca.pem
ETCD_PEER_CERT_FILE={{ etcd_cert_dir }}/member-{{ inventory_hostname }}.pem
ETCD_PEER_KEY_FILE={{ etcd_cert_dir }}/member-{{ inventory_hostname }}-key.pem
ETCD_PEER_CLIENT_CERT_AUTH={{ etcd_peer_client_auth }}

{% if etcd_tls_cipher_suites is defined %}
ETCD_CIPHER_SUITES={% for tls in etcd_tls_cipher_suites %}{{ tls }}{{ "," if not loop.last else "" }}{% endfor %}
{% endif %}

{% for key, value in etcd_extra_vars.items() %}
{{ key }}={{ value }}
{% endfor %}

{% if host_architecture != "amd64" -%}
ETCD_UNSUPPORTED_ARCH={{host_architecture}}
{%- endif %}

# CLI settings
ETCDCTL_ENDPOINTS=https://127.0.0.1:2379
ETCDCTL_CACERT={{ etcd_cert_dir }}/ca.pem
ETCDCTL_KEY={{ etcd_cert_dir }}/admin-{{ inventory_hostname }}-key.pem
ETCDCTL_CERT={{ etcd_cert_dir }}/admin-{{ inventory_hostname }}.pem

# ETCD 3.5.x issue
# https://groups.google.com/a/kubernetes.io/g/dev/c/B7gJs88XtQc/m/rSgNOzV2BwAJ?utm_medium=email&utm_source=footer
ETCD_EXPERIMENTAL_INITIAL_CORRUPT_CHECK={{ etcd_experimental_initial_corrupt_check }}