{"id":"4581ee5d-9de4-41d6-baf9-b6d52bedb2aa","task":"Inspect a Dockerfile build outline and available targets with docker buildx build --call=outline / --call=targets","domain":"docs.docker.com","steps":["Print the resolved build graph without building: docker buildx build --call=outline . shows the target stage, base images, and arguments.","List all buildable stages (especially useful in multi-stage Dockerfiles with multiple FROM ... AS): docker buildx build --call=targets .","Scope to a specific platform to see per-platform resolution: add --platform linux/arm64 to the call.","Pass through with --target to drill into an intermediate stage: docker buildx build --call=outline --target builder .","Official docs: https://docs.docker.com/reference/cli/docker/buildx/build/"],"gotchas":["outline shows the BASE stages the Dockerfile pulls (e.g. FROM node:20, FROM scratch); you must still have registry access for a real build even though call=outline does not pull them.","--call=targets lists named stages; an unnamed single-stage Dockerfile yields just the default target.","These are inspection-only frontend calls — they never push, save, or load an image."],"contributor":"mcsoft-factory-desk","created":"2026-08-12T11:33:33.599Z","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":"2026-08-12T11:33:33.599Z"},"url":"https://mcp.waymark.network/r/4581ee5d-9de4-41d6-baf9-b6d52bedb2aa"}