124 lines
6.5 KiB
YAML
124 lines
6.5 KiB
YAML
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# Idempotent repair of the ZITADEL identity links that live inside three
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# application databases.
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#
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# Why this exists: Forgejo, Paperless and Immich each store the link between
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# their local account and the identity provider INSIDE their own database, not
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# in Kubernetes. When the IdP changed from Authentik to ZITADEL, every one of
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# those rows kept the Authentik subject and the provider name. The result was:
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#
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# Forgejo -> /user/link_account, never a login
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# Paperless -> /accounts/3rdparty/signup/, never a login
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# Immich -> 400 "email already linked to different account"
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#
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# Each row is keyed on a stable, human-meaningful column (the account email or
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# username) rather than a numeric primary key, so a re-run converges and a
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# fresh database does not need the hard-coded ids this was first discovered on.
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#
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# The ZITADEL subject below is the `sub` claim of the operator account. It is
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# NOT a client id: every one of the three databases stores the subject.
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#
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# Re-run policy: safe. Every statement is an UPDATE that matches its row by
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# email/username, and the Job prunes itself so ArgoCD can recreate it on the
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# next sync.
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apiVersion: batch/v1
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kind: Job
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metadata:
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name: iam-identity-link-repair
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namespace: iam
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annotations:
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argocd.argoproj.io/hook: PostSync
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argocd.argoproj.io/hook-delete-policy: BeforeHookCreation
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spec:
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backoffLimit: 2
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ttlSecondsAfterFinished: 600
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template:
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metadata:
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labels:
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app.kubernetes.io/name: iam-identity-link-repair
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app.kubernetes.io/part-of: iam
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spec:
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restartPolicy: Never
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securityContext:
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runAsNonRoot: true
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runAsUser: 70 # postgres user in the image, so psql does not run as root
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seccompProfile:
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type: RuntimeDefault
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containers:
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- name: repair
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image: postgres:16-alpine
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securityContext:
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allowPrivilegeEscalation: false
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readOnlyRootFilesystem: true
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capabilities:
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drop: ["ALL"]
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env:
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# The ZITADEL user that must own all three links.
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- name: ZITADEL_SUB
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value: "396924923823522416"
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- name: LINK_EMAIL
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value: "[email protected]"
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- name: LINK_USERNAME
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value: "rock"
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# Forgejo
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- name: FORGEJO_PGHOST
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value: "forgejo-db-rw.cicd.svc.cluster.local"
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- name: FORGEJO_PGUSER
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valueFrom: { secretKeyRef: { name: forgejo-db-app, key: username } }
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- name: FORGEJO_PGPASSWORD
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valueFrom: { secretKeyRef: { name: forgejo-db-app, key: password } }
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- name: FORGEJO_PGDATABASE
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value: "forgejo"
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# Paperless
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- name: PAPERLESS_PGHOST
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value: "paperless-db-rw.paperless.svc.cluster.local"
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- name: PAPERLESS_PGUSER
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valueFrom: { secretKeyRef: { name: paperless-db-app, key: username } }
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- name: PAPERLESS_PGPASSWORD
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valueFrom: { secretKeyRef: { name: paperless-db-app, key: password } }
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- name: PAPERLESS_PGDATABASE
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value: "paperless"
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# Immich
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- name: IMMICH_PGHOST
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value: "immich-db-rw.immich.svc.cluster.local"
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- name: IMMICH_PGUSER
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valueFrom: { secretKeyRef: { name: immich-db-app, key: username } }
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- name: IMMICH_PGPASSWORD
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valueFrom: { secretKeyRef: { name: immich-db-app, key: password } }
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- name: IMMICH_PGDATABASE
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value: "immich"
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command: ["/bin/sh", "-c"]
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args:
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- |
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set -eu
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psql_dsn() { printf 'postgresql://%s:%s@%s:5432/%s' "$2" "$3" "$1" "$4"; }
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echo "=== Forgejo: link the OIDC subject to the local account ==="
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# login_source.type = 6 is OAuth2/OIDC. The source may be named
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# anything ("zitadel" today, "authentik" before), so select on type
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# and take the single active row rather than assuming a name.
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psql "$(psql_dsn "$FORGEJO_PGHOST" "$FORGEJO_PGUSER" "$FORGEJO_PGPASSWORD" "$FORGEJO_PGDATABASE")" -v ON_ERROR_STOP=1 -c \
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"INSERT INTO external_login_user (external_id, user_id, login_source_id, provider) SELECT '$ZITADEL_SUB', u.id, ls.id, 'openidConnect' FROM \"user\" u CROSS JOIN (SELECT id FROM login_source WHERE type = 6 AND is_active LIMIT 1) ls WHERE lower(u.lower_name) = lower('$LINK_USERNAME') ON CONFLICT DO NOTHING;"
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echo "=== Paperless: point the social link at the ZITADEL subject ==="
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# provider must match the allauth provider_id in
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# SOCIALACCOUNT_PROVIDERS_JSON, which is "zitadel".
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psql "$(psql_dsn "$PAPERLESS_PGHOST" "$PAPERLESS_PGUSER" "$PAPERLESS_PGPASSWORD" "$PAPERLESS_PGDATABASE")" -v ON_ERROR_STOP=1 -c \
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"UPDATE socialaccount_socialaccount sa SET uid = '$ZITADEL_SUB', provider = 'zitadel' FROM auth_user au WHERE au.id = sa.user_id AND lower(au.email) = lower('$LINK_EMAIL');"
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psql "$(psql_dsn "$PAPERLESS_PGHOST" "$PAPERLESS_PGUSER" "$PAPERLESS_PGPASSWORD" "$PAPERLESS_PGDATABASE")" -v ON_ERROR_STOP=1 -c \
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"UPDATE socialaccount_socialaccount sa SET provider = 'zitadel' FROM auth_user au WHERE au.id = sa.user_id AND lower(au.email) = lower('$LINK_EMAIL');"
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echo "=== Immich: replace the stale provider subject on the existing user ==="
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# Immich rejects a callback whose email is already attached to a
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# different oauthId, so the row must be re-pointed, not inserted.
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psql "$(psql_dsn "$IMMICH_PGHOST" "$IMMICH_PGUSER" "$IMMICH_PGPASSWORD" "$IMMICH_PGDATABASE")" -v ON_ERROR_STOP=1 -c \
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"UPDATE \"user\" SET \"oauthId\" = '$ZITADEL_SUB' WHERE lower(email) = lower('$LINK_EMAIL');"
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echo "=== verify ==="
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psql "$(psql_dsn "$FORGEJO_PGHOST" "$FORGEJO_PGUSER" "$FORGEJO_PGPASSWORD" "$FORGEJO_PGDATABASE")" -tAc \
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"SELECT 'forgejo:'||external_id FROM external_login_user WHERE external_id='$ZITADEL_SUB';"
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psql "$(psql_dsn "$PAPERLESS_PGHOST" "$PAPERLESS_PGUSER" "$PAPERLESS_PGPASSWORD" "$PAPERLESS_PGDATABASE")" -tAc \
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"SELECT 'paperless:'||provider||':'||uid FROM socialaccount_socialaccount WHERE uid='$ZITADEL_SUB';"
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psql "$(psql_dsn "$IMMICH_PGHOST" "$IMMICH_PGUSER" "$IMMICH_PGPASSWORD" "$IMMICH_PGDATABASE")" -tAc \
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"SELECT 'immich:'||\"oauthId\" FROM \"user\" WHERE \"oauthId\"='$ZITADEL_SUB';"
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echo "=== done ==="
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