Caddy: web server and reverse proxy with HTTPS on by default. Signed; SBOM and SLSA v1 provenance.
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readystack/caddy:v2.11.7-CE-ubuntu24.04-r5
Source, recipe and records
v2.11.7): https://github.com/caddyserver/caddy/tree/72dd0fb067f6d7826c7f79907670ba4a713bfe37A cosign-signed build of github.com/caddyserver/caddy v2.11.7 (Apache-2.0), built clean-room from official upstream source by ReadyStack.
Who: Developers and system administrators who serve websites, APIs and apps and want HTTPS without handling certificates by hand.
Why: Caddy is a web server and reverse proxy with HTTPS on by default: it gets and renews certificates for public names and runs its own local certificate authority for internal names.
Use case: A small team runs several web apps on one server. A short Caddyfile puts each app behind its own domain name as a reverse proxy; Caddy obtains and renews the certificates and redirects plain HTTP to HTTPS, so nobody copies certificate files around or tracks expiry dates.
About the upstream project, written from its own description: https://github.com/caddyserver/caddy · https://caddyserver.com/docs/ · https://caddyserver.com/docs/automatic-https
Signature, user and attestations below were measured on the published digest sha256:8db2e7664d1e6cd8b6242b2a6190a235105a293a944b41e70399cb20a452a8b3 on 2026-10-29.
04daa92344a52dbc) on this release's index digest sha256:8db2e7664d1e6cd8b6242b2a6190a235105a293a944b41e70399cb20a452a8b3; verify with cosign verify --key https://readystack.dev/keys/cosign.pub readystack/caddy:v2.11.7-CE-ubuntu24.04-r5.caddy).This image follows the ReadyStack release-tag convention:
The current release is v2.11.7-CE-ubuntu24.04-r5 — the release listed at readystack.dev. Release tags use the pattern <upstream-version>-CE-<base-os>-r<N>; the current one is signed, attested (SBOM + provenance), and is provided under the ReadyStack Agreement.
Earlier release tags (an older version or revision in the same pattern) are superseded. They stay pullable so existing deployments can pin them, but they are no longer re-graded, and fixes appear only in newer releases: move to the current release. For a superseded release's build kit, ask support.
Release tags never move, so pulling the same tag again never changes the image. To be offered each new release automatically (a new revision r<N+1>, or a new upstream version), use the ReadyStack Renovate preset: https://readystack.dev/updates.html
Any tag beginning with internal- is an engineering-pipeline artifact published for build observability. It is unsupported, may change or disappear without notice, and must not be used in production.
# ✓ current release
docker pull readystack/caddy:v2.11.7-CE-ubuntu24.04-r5
# ✗ unsupported (do not pull)
docker pull readystack/caddy:internal-...
This release is signed; verify it with cosign verify --key https://readystack.dev/keys/cosign.pub readystack/caddy:v2.11.7-CE-ubuntu24.04-r5 (the signature is recorded in the public Sigstore transparency log). Support: [email protected], as set out in the ReadyStack Agreement.
Single container, single static binary, foreground process. No sidecars, no DB.
docker run -d --name caddy -p 80:80 -p 443:443 -v caddy_data:/data -v caddy_config:/config readystack/caddy:v2.11.7-CE-ubuntu24.04-r5
Starts Caddy in the foreground as PID 1, serving the shipped default Caddyfile: GET / returns a placeholder page and GET /health returns 200 OK within a second of start (this release's validation tested /health; its GET / check was not exercised — see the archive's docs/validation/FAILED_TESTS.md). Persist /data (certificates, ACME state and Caddy's local CA) and /config (Caddy's autosaved JSON) with named volumes, as in Starting it (the command packaging runs) in the handbooks, and keep -v caddy_data:/data -v caddy_config:/config on every docker run that re-creates the container — tested: with them a docker rm + fresh docker run served the same certificate; without them the re-created container got a new certificate and a new local CA. The admin API on :2019 binds to localhost INSIDE the container only (see Admin api in the handbooks) — publishing it to the host does not make it reachable from outside the container. The archive ships no Compose file.
The complete --network=none build kit for this image — plus admin/DB/API handbooks, the build's validation records, and its build provenance records — is a free download for any registered account at readystack.dev/products/caddy. A clean-room rebuild from this release's archive on an egress-blocked host reproduced its linux/amd64 digest sha256:152fa89c297601e72fb165849aefdaad8fe18f990d47c91639b7c1379c9e760d on 2026-10-29.
— ReadyStack · readystack.dev
Content type
Image
Digest
sha256:8db2e7664…
Size
70.3 MB
Last updated
1 day ago
docker pull readystack/caddy:v2.11.7-CE-ubuntu24.04-r5