infra/scripts/setup-forgejo-containerd-mirror.sh
Viktor Barzin f793a5f50b [forgejo] Phase 0 of registry consolidation: prepare Forgejo OCI registry
Stage 1 of moving private images off the registry:2 container at
registry.viktorbarzin.me:5050 (which has hit distribution#3324 corruption
3x in 3 weeks) onto Forgejo's built-in OCI registry. No cutover risk —
pods still pull from the existing registry until Phase 3.

What changes:
* Forgejo deployment: memory 384Mi→1Gi, PVC 5Gi→15Gi (cap 50Gi).
  Explicit FORGEJO__packages__ENABLED + CHUNKED_UPLOAD_PATH (defensive,
  v11 default-on).
* ingress_factory: max_body_size variable was declared but never wired
  in after the nginx→Traefik migration. Now creates a per-ingress
  Buffering middleware when set; default null = no limit (preserves
  existing behavior). Forgejo ingress sets max_body_size=5g to allow
  multi-GB layer pushes.
* Cluster-wide registry-credentials Secret: 4th auths entry for
  forgejo.viktorbarzin.me, populated from Vault secret/viktor/
  forgejo_pull_token (cluster-puller PAT, read:package). Existing
  Kyverno ClusterPolicy syncs cluster-wide — no policy edits.
* Containerd hosts.toml redirect: forgejo.viktorbarzin.me → in-cluster
  Traefik LB 10.0.20.200 (avoids hairpin NAT for in-cluster pulls).
  Cloud-init for new VMs + scripts/setup-forgejo-containerd-mirror.sh
  for existing nodes.
* Forgejo retention CronJob (0 4 * * *): keeps newest 10 versions per
  package + always :latest. First 7 days dry-run (DRY_RUN=true);
  flip the local in cleanup.tf after log review.
* Forgejo integrity probe CronJob (*/15): same algorithm as the
  existing registry-integrity-probe. Existing Prometheus alerts
  (RegistryManifestIntegrityFailure et al) made instance-aware so
  they cover both registries during the bake.
* Docs: design+plan in docs/plans/, setup runbook in docs/runbooks/.

Operational note — the apply order is non-trivial because the new
Vault keys (forgejo_pull_token, forgejo_cleanup_token,
secret/ci/global/forgejo_*) must exist BEFORE terragrunt apply in the
kyverno + monitoring + forgejo stacks. The setup runbook documents
the bootstrap sequence.

Phase 1 (per-project dual-push pipelines) follows in subsequent
commits. Bake clock starts when the last project goes dual-push.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-07 23:29:33 +00:00

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#!/usr/bin/env bash
# One-shot deployment of the forgejo.viktorbarzin.me containerd hosts.toml
# entry across every k8s node. Cloud-init only fires on VM provision, so
# existing nodes need this manual rollout.
#
# What it does, per node:
# 1. drain (ignore-daemonsets, delete-emptydir-data)
# 2. ssh in: mkdir + write /etc/containerd/certs.d/forgejo.viktorbarzin.me/hosts.toml
# 3. systemctl restart containerd
# 4. uncordon
#
# hosts.toml is documented as hot-reloaded but the post-2026-04-19
# containerd corruption playbook calls for an explicit restart so the
# config is unambiguously in effect. Running drain/uncordon around it
# avoids pulling against an in-flight containerd restart.
#
# Re-run is safe: writes are idempotent.
set -euo pipefail
CERTS_DIR=/etc/containerd/certs.d/forgejo.viktorbarzin.me
HOSTS_TOML='server = "https://forgejo.viktorbarzin.me"
[host."https://10.0.20.200"]
capabilities = ["pull", "resolve"]
'
NODES=$(kubectl get nodes -o name | sed 's|^node/||')
if [[ -z "$NODES" ]]; then
echo "ERROR: no nodes returned from kubectl get nodes" >&2
exit 1
fi
for n in $NODES; do
echo "=== $n ==="
kubectl drain "$n" --ignore-daemonsets --delete-emptydir-data --force --grace-period=60
ssh -o StrictHostKeyChecking=accept-new "wizard@$n" sudo bash <<EOF
set -euo pipefail
mkdir -p "$CERTS_DIR"
cat > "$CERTS_DIR/hosts.toml" <<'TOML'
$HOSTS_TOML
TOML
systemctl restart containerd
EOF
kubectl uncordon "$n"
# Wait for the node to report Ready before moving to the next one.
for i in {1..30}; do
if kubectl get node "$n" -o jsonpath='{.status.conditions[?(@.type=="Ready")].status}' | grep -q True; then
echo " node Ready"
break
fi
sleep 2
done
done
echo "All nodes updated."