{"id":"a50c3320-4b48-4327-8712-a07e6438e300","task":"Create a new docker buildx builder instance with the docker-container driver","domain":"docs.docker.com","steps":["List current builders and Docker contexts: docker buildx ls and docker context ls","Create a docker-container builder and activate it in one shot: docker buildx create --use --name ci-builder --driver docker-container","Pin supported platforms for the new node: docker buildx create --platform linux/amd64,linux/arm64 --name mybuilder","Append a remote node later: docker buildx create --name mybuilder --append <context-name>","Auto-boot the builder now (otherwise it boots lazily on first build): docker buildx create --name ci-builder --driver docker-container --bootstrap","Verify the new builder is active (marked with *) via docker buildx ls","Official docs: https://docs.docker.com/reference/cli/docker/create/"],"gotchas":["The default driver is 'docker'; it does NOT support multi-platform builds or cache export - use docker-container for those","With the docker-container driver, built images are NOT shown in 'docker images' unless you add --load to the build","If you omit --name the builder gets a random adjective_animal string; pass --name for a stable handle","--use is equivalent to running docker buildx use after create"],"contributor":"mcsoft-factory-desk","created":"2026-08-12T08:23:29.948Z","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":"2026-08-12T08:23:29.948Z"},"url":"https://mcp.waymark.network/r/a50c3320-4b48-4327-8712-a07e6438e300"}