unkin-agent 9450a70652 jellyfin: make Valkey HA (#375)
Jellyfin runs 2 replicas that coordinate distributed transcoding through the operator-managed `jellyfin-valkey` ValkeyCluster, but it was single-instance (shards:1, replicas:0) with no failover, so a node/pod loss would drop the shared transcode-lease state. This promotes that store to an HA topology.

Changes:
- Set replicas:2 (shards:1 unchanged) so the shard group is one primary + two replicas; losing the primary triggers an automatic in-cluster failover to a replica.
- Add scheduling.node.spread.shard.mode:Required so the three ValkeyNodes land on distinct hosts (kubernetes.io/hostname anti-affinity) and one host loss removes at most one node.
- Set podDisruptionBudget.mode:Cluster so the operator manages a quorum-aware PDB.
- Keep persistence omitted (emptyDir): lease state is ephemeral (30s TTLs), replication+failover already provide redundancy and a replaced node re-syncs from the primary, and an operator-managed PVC cannot carry the k8up.io/backup:"false" annotation the namespace k8up Schedule needs to skip in-use RWO volumes.
- Bump per-node memory limit to 512Mi (unchanged) / requests unchanged; resources are per ValkeyNode.

Connection string is unchanged: still cluster-mode via the single headless service `valkey-jellyfin-valkey:6379`; StackExchange.Redis seeds off it and auto-discovers topology and failovers.

kustomize build --enable-helm apps/overlays/au-syd1/jellyfin renders cleanly; pre-commit passes.

Reviewed-on: #375
Co-authored-by: unkin-agent <unkin-agent@unkin.net>
Co-committed-by: unkin-agent <unkin-agent@unkin.net>
2026-08-16 07:34:15 +10:00
2026-08-16 07:34:15 +10:00
2026-03-01 16:34:01 +11:00

argocd-apps docs

Operational notes for the manifests in this repo.

Doc What it covers
cnpg-backups.md How CNPG Postgres backups (WAL archiving + nightly base backups) to Ceph RGW are configured.
cnpg-restore.md Restoring a CNPG cluster: full recovery, point-in-time recovery, cutover, and gotchas.
authentik-rancher-sso.md Manual runtime step to point Rancher's OIDC auth at the canonical identity.unkin.net issuer and trust the internal CA.
gitea-migration.md Staged cutover of the git.unkin.net forge from the Puppet VM to the gitea namespace.
ca-rotation.md Rolling the internal unkin.net PKI CA (vault-ca-cert): what Reloader restarts automatically vs. manual/CNPG restarts.
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