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https://github.com/cozystack/cozystack.git
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Alexey Artamonov
c83a22e077
The etcd chart only set a soft topologySpreadConstraints and never rendered spec.affinity, so the scheduler could place several members of a 3-node EtcdCluster on the same node; losing that node then took out quorum (observed in production after a single node reboot). Render EtcdCluster.spec.affinity from a new `affinity` value. When it is left empty the chart applies a soft (preferred) podAntiAffinity on kubernetes.io/hostname, so members are spread on a best-effort basis without ever leaving a member Pending on small or node-pinned-storage clusters. Operators can override the value — e.g. a hard requiredDuringScheduling rule — where node count and storage allow. Assisted-By: Claude <noreply@anthropic.com> Signed-off-by: Alexey Artamonov <aleksei.artamonov@aenix.io>
77 lines
2.8 KiB
JSON
77 lines
2.8 KiB
JSON
{
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"title": "Chart Values",
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"type": "object",
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"properties": {
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"version": {
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"description": "etcd version (X.Y.Z) to run, set on the EtcdCluster's spec.version; the operator pulls etcd from its own configured image.",
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"type": "string",
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"default": "3.6.11"
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},
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"size": {
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"description": "Persistent Volume size.",
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"default": "4Gi",
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"pattern": "^(\\+|-)?(([0-9]+(\\.[0-9]*)?)|(\\.[0-9]+))(([KMGTPE]i)|[numkMGTPE]|([eE](\\+|-)?(([0-9]+(\\.[0-9]*)?)|(\\.[0-9]+))))?$",
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"anyOf": [
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{
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"type": "integer"
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},
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{
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"type": "string"
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}
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],
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"x-kubernetes-int-or-string": true
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},
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"storageClass": {
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"description": "StorageClass used to store the data.",
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"type": "string",
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"default": ""
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},
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"replicas": {
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"description": "Number of etcd replicas.",
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"type": "integer",
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"default": 3
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},
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"resources": {
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"description": "Resource configuration for etcd.",
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"type": "object",
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"default": {},
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"properties": {
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"cpu": {
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"description": "Number of CPU cores allocated.",
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"default": "1000m",
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"pattern": "^(\\+|-)?(([0-9]+(\\.[0-9]*)?)|(\\.[0-9]+))(([KMGTPE]i)|[numkMGTPE]|([eE](\\+|-)?(([0-9]+(\\.[0-9]*)?)|(\\.[0-9]+))))?$",
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"anyOf": [
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{
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"type": "integer"
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},
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{
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"type": "string"
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}
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],
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"x-kubernetes-int-or-string": true
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},
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"memory": {
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"description": "Amount of memory allocated.",
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"default": "512Mi",
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"pattern": "^(\\+|-)?(([0-9]+(\\.[0-9]*)?)|(\\.[0-9]+))(([KMGTPE]i)|[numkMGTPE]|([eE](\\+|-)?(([0-9]+(\\.[0-9]*)?)|(\\.[0-9]+))))?$",
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"anyOf": [
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{
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"type": "integer"
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},
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{
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"type": "string"
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}
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],
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"x-kubernetes-int-or-string": true
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}
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}
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},
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"affinity": {
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"description": "Affinity rules set verbatim on the EtcdCluster's spec.affinity, replacing the chart default. When left empty the chart applies a soft (preferred) podAntiAffinity that spreads members across nodes by kubernetes.io/hostname on a best-effort basis, so a single node failure is less likely to take out more than one member. The default is intentionally soft: a hard rule would leave a member Pending when there are fewer schedulable nodes than replicas, or when node-local storage pins a member to a node. Set a hard requiredDuringSchedulingIgnoredDuringExecution rule here to forbid co-location outright (only on clusters with enough nodes and non-node-pinned storage).",
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"type": "object",
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"default": {},
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"x-kubernetes-preserve-unknown-fields": true
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}
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}
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}
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