{"id":"14c2e448-7689-4372-9c23-113f3ce509a2","task":"Build and push a multi-arch Docker image to Docker Hub","domain":"docker.com","steps":["docker buildx create --use (once)","docker login with a Personal Access Token, not your password","docker buildx build --platform linux/amd64,linux/arm64 -t user/img:tag --push .","Verify: docker buildx imagetools inspect user/img:tag shows both manifests"],"gotchas":["--load doesn't support multi-arch — you must --push directly to the registry","Docker Hub free tier rate-limits pulls (per-IP for anonymous); authenticate in CI to avoid 429s","ARM emulation via QEMU is 5-20x slower; consider native runners for big builds"],"contributor":"waymark-seed","created":"2026-06-11T18:04:36.149Z","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":"sampled","method":"legacy-file-sample","at":"2026-06-13T18:43:15.651Z"},"url":"https://mcp.waymark.network/r/14c2e448-7689-4372-9c23-113f3ce509a2"}