kubespray/roles/etcd/defaults/main.yml

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---
# Set etcd user
etcd_owner: etcd
# Set to false to only do certificate management
etcd_cluster_setup: true
etcd_events_cluster_setup: false
# Set to true to separate k8s events to a different etcd cluster
etcd_events_cluster_enabled: false
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etcd_backup_prefix: "/var/backups"
etcd_data_dir: "/var/lib/etcd"
# Number of etcd backups to retain. Set to a value < 0 to retain all backups
etcd_backup_retention_count: -1
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force_etcd_cert_refresh: true
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etcd_config_dir: /etc/ssl/etcd
etcd_cert_dir: "{{ etcd_config_dir }}/ssl"
etcd_cert_dir_mode: "0700"
etcd_cert_group: root
# Note: This does not set up DNS entries. It simply adds the following DNS
# entries to the certificate
etcd_cert_alt_names:
- "etcd.kube-system.svc.{{ dns_domain }}"
- "etcd.kube-system.svc"
- "etcd.kube-system"
- "etcd"
etcd_cert_alt_ips: []
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etcd_script_dir: "{{ bin_dir }}/etcd-scripts"
etcd_heartbeat_interval: "250"
etcd_election_timeout: "5000"
# etcd_snapshot_count: "10000"
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etcd_metrics: "basic"
# Define in inventory to set a separate port for etcd to expose metrics on
# etcd_metrics_port: 2381
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## A dictionary of extra environment variables to add to etcd.env, formatted like:
## etcd_extra_vars:
## ETCD_VAR1: "value1"
## ETCD_VAR2: "value2"
etcd_extra_vars: {}
# Limits
# Limit memory only if <4GB memory on host. 0=unlimited
# This value is only relevant when deploying etcd with `etcd_deployment_type: docker`
etcd_memory_limit: "{% if ansible_memtotal_mb < 4096 %}512M{% else %}0{% endif %}"
# The default storage size limit is 2G.
# 8G is a suggested maximum size for normal environments and etcd warns at startup if the configured value exceeds it.
# etcd_quota_backend_bytes: "2147483648"
# Maximum client request size in bytes the server will accept.
# etcd is designed to handle small key value pairs typical for metadata.
# Larger requests will work, but may increase the latency of other requests
# etcd_max_request_bytes: "1572864"
# Uncomment to set CPU share for etcd
# etcd_cpu_limit: 300m
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etcd_blkio_weight: 1000
etcd_node_cert_hosts: "{{ groups['k8s_cluster'] | union(groups.get('calico_rr', [])) }}"
etcd_compaction_retention: "8"
# Force clients like etcdctl to use TLS certs (different than peer security)
etcd_secure_client: true
# Enable peer client cert authentication
etcd_peer_client_auth: true
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# Maximum number of snapshot files to retain (0 is unlimited)
# etcd_max_snapshots: 5
# Maximum number of wal files to retain (0 is unlimited)
# etcd_max_wals: 5
# Number of loop retries
etcd_retries: 4
## Support tls cipher suites.
# etcd_tls_cipher_suites: {}
# - TLS_RSA_WITH_RC4_128_SHA
# - TLS_RSA_WITH_3DES_EDE_CBC_SHA
# - TLS_RSA_WITH_AES_128_CBC_SHA
# - TLS_RSA_WITH_AES_256_CBC_SHA
# - TLS_RSA_WITH_AES_128_CBC_SHA256
# - TLS_RSA_WITH_AES_128_GCM_SHA256
# - TLS_RSA_WITH_AES_256_GCM_SHA384
# - TLS_ECDHE_ECDSA_WITH_RC4_128_SHA
# - TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
# - TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
# - TLS_ECDHE_RSA_WITH_RC4_128_SHA
# - TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA
# - TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
# - TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
# - TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
# - TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
# - TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
# - TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
# - TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
# - TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
# - TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305
# - TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
# - TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305
# - TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
# 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: true