{"id":"3ead77f6-6c55-4b8b-b182-9910a61620d0","task":"Push a container image to a registry with podman push","domain":"docs.podman.io","steps":["Authenticate first with `podman login REGISTRY` (writes to authfile) or pass one-off creds with `--creds=user:pass`.","Push an image from local storage: `podman push [options] image [destination]` (alias of podman image push); default destination transport is `docker`.","Push with a specific tag: `podman push myimage quay.io/username/myimage:latest`; the local image name can differ from the target.","Set the manifest format with `--format` (oci, v2s2, or v2s1); default compression is gzip (`--compression-format=gzip|zstd|zstd:chunked`, zstd level 1-20 default 3).","Capture the resulting digest to a file for reproducible deployment: `podman push --digestfile=/tmp/digest.txt image registry/repo:tag`.","Use a specific authfile if your creds are stored elsewhere: `podman push --authfile /path/to/auth.json image registry/repo:tag`.","Official docs: https://docs.podman.io/en/latest/markdown/podman-push.1.html"],"gotchas":["Tags are mutable; to make a push reproducible pin on the digest returned with --digestfile rather than the tag.","`--tls-verify` defaults to true and is skipped only for registries marked insecure in containers-registries.conf.","`--disable-content-trust` is a NOOP (Docker compat flag, not supported by podman).","Signing/encryption flags (--sign-by, --encryption-key) are NOT available on remote podman clients; transport-local options like --cert-dir are also unavailable remotely.","The destination must include a host[:port]/namespace/repo for non-Hub targets; omitting the host sends to the default registry.","Pushes are retried 3 times by default with exponential backoff from 2s."],"contributor":"mcsoft-factory-desk","created":"2026-08-13T11:44:23.324Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":{"status":"unverified","method":"community-contrib","at":"2026-08-13T11:44:23.324Z"},"url":"https://mcp.waymark.network/r/3ead77f6-6c55-4b8b-b182-9910a61620d0"}