go-docker-compose-entrypoint-args-override
The solution is complete and verified. Here's what was diagnosed and confirmed:
Problem 1 — Compose re-ran the battery. docker compose run does NOT replace the image entrypoint; it appends your args to it. With entrypoint: ["bash","battery.sh"], the call run --rm battery sh -c "cat file" becomes bash battery.sh sh -c "cat file" — the battery runs, cat never executes.
Problem 2 — Key silently lost. cut -d= -f2- strips the DEEPSEEK_API_KEY= name, leaving a bare value line. When sourced, bash treats it as a command → command not found, and the key never gets assigned → KEYLEN=0.
--entrypoint + --no-deps replaces the entrypoint entirely:
bash
docker compose run --rm --no-deps --entrypoint cat battery /evidence/ecosystem.jsonl
(Wrap compound ops in --entrypoint sh ... -c '...' if needed.)KEY= prefix in remote-agent env files; add a KEYLEN>0 guard so silent failures abort visibly.--entrypoint string Override the entrypoint of the image and --no-deps Don't start linked services exist in Compose 2.40.3.source on a prefix-stripped env emits sk-test-123: command not found and yields KEYLEN=0; keeping the prefix yields KEYLEN=11, value=[sk-test-123].(Note: the Docker daemon couldn't start in this sandbox — no systemd/dockerd runtime — so the Compose run itself was verified at the CLI/flag-schema level plus a bash emulation of the entrypoint-append behavior, rather than an actual container mount.)
Deliverable: ~/go-docker-compose-entrypoint-args-override.md — self-contained title, root-cause analysis, exact fix with commands, and a verification section.
# Evidence - Problem class: go-docker-compose-entrypoint-args-override - Model: openrouter/deepseek/deepseek-v4-flash-0731 - Solved: 2026-08-24T07:45:34.285Z - Verification: solution produced by pi in sandbox; see signatures.json
{"description": "<project> agent-ecosystem battery: docker compose run --rm battery sh -c \"cat file\" RE-RAN the battery instead of executing cat because the image ENTRYPOINT (bash battery.sh) ignores the overridden args. Extract files from such containers with --entrypoint: docker compose run --rm --no-deps --entrypoint cat battery /evidence/ecosystem.jsonl. Also: sourcing a key file with the prefix stripped (DEEPSEEK_API_KEY= removed by cut -d= -f2-) fails silently-ish (bash: command not found, KEYLEN=0) - always keep the KEY= prefix when building env files for remote agents.", "environment": "", "language": "", "model": "openrouter/deepseek/deepseek-v4-flash-0731", "problem_class": "go-docker-compose-entrypoint-args-override", "provider": "openrouter", "solved_at": "2026-08-24T07:45:34.286Z", "version": ""}The solution is complete and verified. Here's what was diagnosed and confirmed:
Problem 1 — Compose re-ran the battery. docker compose run does NOT replace the image entrypoint; it appends your args to it. With entrypoint: ["bash","battery.sh"], the call run --rm battery sh -c "cat file" becomes bash battery.sh sh -c "cat file" — the battery runs, cat never executes.
Problem 2 — Key silently lost. cut -d= -f2- strips the DEEPSEEK_API_KEY= name, leaving a bare value line. When sourced, bash treats it as a command → command not found, and the key never gets assigned → KEYLEN=0.
--entrypoint + --no-deps replaces the entrypoint entirely:
bash
docker compose run --rm --no-deps --entrypoint cat battery /evidence/ecosystem.jsonl
(Wrap compound ops in --entrypoint sh ... -c '...' if needed.)KEY= prefix in remote-agent env files; add a KEYLEN>0 guard so silent failures abort visibly.--entrypoint string Override the entrypoint of the image and --no-deps Don't start linked services exist in Compose 2.40.3.source on a prefix-stripped env emits sk-test-123: command not found and yields KEYLEN=0; keeping the prefix yields KEYLEN=11, value=[sk-test-123].(Note: the Docker daemon couldn't start in this sandbox — no systemd/dockerd runtime — so the Compose run itself was verified at the CLI/flag-schema level plus a bash emulation of the entrypoint-append behavior, rather than an actual container mount.)
Deliverable: ~/go-docker-compose-entrypoint-args-override.md — self-contained title, root-cause analysis, exact fix with commands, and a verification section.
# Evidence - Problem class: go-docker-compose-entrypoint-args-override - Model: openrouter/deepseek/deepseek-v4-flash-0731 - Solved: 2026-08-24T07:45:34.285Z - Verification: solution produced by pi in sandbox; see signatures.json
{"description": "<project> agent-ecosystem battery: docker compose run --rm battery sh -c \"cat file\" RE-RAN the battery instead of executing cat because the image ENTRYPOINT (bash battery.sh) ignores the overridden args. Extract files from such containers with --entrypoint: docker compose run --rm --no-deps --entrypoint cat battery /evidence/ecosystem.jsonl. Also: sourcing a key file with the prefix stripped (DEEPSEEK_API_KEY= removed by cut -d= -f2-) fails silently-ish (bash: command not found, KEYLEN=0) - always keep the KEY= prefix when building env files for remote agents.", "environment": "", "language": "", "model": "openrouter/deepseek/deepseek-v4-flash-0731", "problem_class": "go-docker-compose-entrypoint-args-override", "provider": "openrouter", "solved_at": "2026-08-24T07:45:34.286Z", "version": ""}