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QuenchWorks

backdrop

Chart · Apps & productivity · standard · v0.0.7

digest pinnedcosign signedSPDX SBOMSLSA provenanceamd64 · arm64Rebuilt 2026-10-22

Backdrop CMS, the PHP content-management system forked from Drupal 7. The official release zip on a hardened Wolfi php-8.4-fpm + nginx runtime (nonroot, read-only rootfs, supervisord). Its settings.php reads the MySQL or MariaDB connection from BACKDROP_DB_* env vars, so the docroot stays read-only and only files/ (uploads, active config, backups) is writable; the CLI installer sets up the schema. Ships 1.34 and 1.35.

Version

0.0.7 · latest0.0.60.0.5

The latest line lives at the base page; older lines have their own page so you can pin and verify exactly that version. Only the most recent releases are listed — an older chart pins an older image digest.

Deployed image digest

sha256:5098c802044985910fefa59adc6c1ec816afdc1ee1ad75ba7209ab2f671b4329

Chart OCI version

oci://ghcr.io/quenchworks/charts/backdrop:0.0.7

The chart pins its image by this signed digest, so you never track it yourself. Signatures, SBOM, and provenance attach to the same digest.

Signed
cosign keyless
SBOM
SPDX, on image
Provenance
SLSA build
Architectures
amd64, arm64
Runs as
nonroot (uid 1001)
Root filesystem
read-only
Image size
75.5 MB

Security report (Trivy)

A+· 100/1000 fixable CVEs
0
Critical
0
High
0
Medium
0
Low
0
Unknown

Security report (Trivy) · image backdrop 1.35.2

Install the chart

Deploy to Kubernetes with hardened defaults. The chart pins its image by signed digest, so you never track it yourself.

Install (latest)

helm install my-backdrop oci://ghcr.io/quenchworks/charts/backdrop --version 0.0.7

Deploys images (digest-pinned)

Chart version
0.0.7
App version
1.35.2
Chart license
GPL-2.0-or-later
App license
GPL-2.0+
Service port
8080
Signed
cosign (keyless)
Values schema
yes
Last published
2026-10-22
Values keys
  • image: repository digest pullPolicy
  • nameOverride
  • replicaCount
  • backdrop: siteName admin hashSalt
  • database: prefix
  • mysql: enabled auth primary
  • externalDatabase: host port database user password existingSecret existingSecretPasswordKey
  • resources: requests limits
  • init: resources dbWaitSeconds
  • service: type port
  • persistence: size accessModes annotations existingClaim
  • podLabels
  • podAnnotations
  • nodeSelector
  • affinity
  • tolerations
  • topologySpreadConstraints
  • priorityClassName
  • schedulerName
  • terminationGracePeriodSeconds
  • updateStrategy
  • extraEnvVars
  • extraEnvVarsCM
  • extraEnvVarsSecret
  • extraVolumes
  • extraVolumeMounts
  • initContainers
  • sidecars
  • lifecycleHooks
  • command
  • args
  • podSecurityContext
  • containerSecurityContext
  • livenessProbe
  • readinessProbe
  • customLivenessProbe
  • customReadinessProbe
  • customStartupProbe
  • serviceAccount: create name annotations
  • rbac: create
  • networkPolicy: enabled allowExternal
  • podDisruptionBudget: enabled minAvailable
  • ingress: enabled className annotations servicePort hosts tls

Verify the chart

cosign verify ghcr.io/quenchworks/charts/backdrop:0.0.7 \
  --certificate-identity-regexp 'https://github.com/quenchworks/.+' \
  --certificate-oidc-issuer https://token.actions.githubusercontent.com

Transparency

The chart publishes its attestations on GitHub and the image it deploys carries its own on the same digest, publicly verifiable with the commands above. Both log to the Sigstore transparency log (Rekor), which cosign verify checks for you.

View the imageView on ArtifactHubChart source

Upstream project: https://backdropcms.org