first commit #177
first commit #177
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Walkthroughdocker-compose.yml was updated to parameterize service names, ports, and credentials using environment variables with defaults for db, redis, and app. The db healthcheck now references the parameterized POSTGRES_USER. Volumes remain unchanged. Changes
Estimated code review effort🎯 2 (Simple) | ⏱️ ~10 minutes Poem
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Actionable comments posted: 3
🧹 Nitpick comments (4)
docker-compose.yml (4)
35-35: Trim trailing spaces.There are trailing spaces after "redis:" causing a linter error.
- redis: + redis:
21-23: Add a Redis healthcheck (and consider pinning the image tag).Healthcheck improves depends_on readiness. Also consider pinning from
redis:latestto a specific major/minor for reproducibility (e.g.,redis:7-alpine).ports: - "127.0.0.1:${REDIS_HOST_PORT:-6379}:6379" + healthcheck: + test: ["CMD", "redis-cli", "ping"] + interval: 5s + timeout: 3s + retries: 5
4-4: Consider avoiding container_name for portability and scaling.Hard-coded container names hinder docker-compose scale and can clash across environments. Prefer the service name or gate container_name behind a dev profile.
- container_name: ${DB_CONTAINER_NAME:-volunchain_db} + # container_name: ${DB_CONTAINER_NAME:-volunchain_db} # optional (dev only)- container_name: ${REDIS_CONTAINER_NAME:-volunchain_redis} + # container_name: ${REDIS_CONTAINER_NAME:-volunchain_redis} # optional (dev only)- container_name: ${APP_CONTAINER_NAME:-volunchain_app} + # container_name: ${APP_CONTAINER_NAME:-volunchain_app} # optional (dev only)Also applies to: 21-21, 27-27
6-8: Production hardening follow-ups (optional).
- Use Docker secrets or a vault for DB credentials in prod.
- Consider parameterizing REDIS_URL (host/port/password), and enabling Redis auth in non-dev.
Also applies to: 29-30
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📒 Files selected for processing (1)
docker-compose.yml(1 hunks)
🧰 Additional context used
🪛 YAMLlint (1.37.1)
docker-compose.yml
[error] 35-35: trailing spaces
(trailing-spaces)
[error] 41-41: syntax error: could not find expected ':'
(syntax)
🔇 Additional comments (1)
docker-compose.yml (1)
31-36: Verify Compose version supports depends_on conditions
Ensure your Docker Compose setup supports thecondition:form independs_on(requires Docker Compose plugin v2.20+ or the standalone Compose ≥ 1.28.0). In your local and CI environments, run:docker compose version docker version # or, if using standalone Compose: docker-compose --versionand confirm the Compose version meets these minimum requirements.
| POSTGRES_USER: ${POSTGRES_USER:-volunchain} | ||
| POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-volunchain123} | ||
| POSTGRES_DB: ${POSTGRES_DB:-volunchain} |
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🛠️ Refactor suggestion
Avoid shipping default credentials; require them via .env.
Defaulting POSTGRES_PASSWORD (and embedding it in DATABASE_URL) is a security smell. Make the password required and document it in .env.example.
POSTGRES_USER: ${POSTGRES_USER:-volunchain}
- POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-volunchain123}
+ POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:?set in .env}
POSTGRES_DB: ${POSTGRES_DB:-volunchain}- DATABASE_URL: postgres://${POSTGRES_USER:-volunchain}:${POSTGRES_PASSWORD:-volunchain123}@db:5432/${POSTGRES_DB:-volunchain}
+ DATABASE_URL: postgres://${POSTGRES_USER:-volunchain}:${POSTGRES_PASSWORD:?set in .env}@db:5432/${POSTGRES_DB:-volunchain}Optional: switch to env_file: .env and add a committed .env.example.
Also applies to: 29-29
🤖 Prompt for AI Agents
In docker-compose.yml around lines 6-8 (and line 29), the compose file currently
supplies default DB credentials via inline defaults which embeds a default
POSTGRES_PASSWORD (and other defaults) — remove the inline default values so
these vars are required from environment, and stop constructing a DATABASE_URL
with a defaulted password; instead add an env_file: .env to the service and
commit a .env.example that documents POSTGRES_USER, POSTGRES_PASSWORD,
POSTGRES_DB (and DATABASE_URL if used) with placeholder values and instructions.
Ensure docker-compose uses the variables as-is (no :- defaults), update any
DATABASE_URL construction to read from the required env var, and add
.env.example to the repo so developers know which variables to set.
| POSTGRES_DB: ${POSTGRES_DB:-volunchain} | ||
| ports: | ||
| - "5434:5432" # O usa "5432:5432" si necesitas que coincida localmente | ||
| - "${DB_HOST_PORT:-5434}:5432" |
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🛠️ Refactor suggestion
Bind services to localhost to avoid exposing them on all interfaces.
Limit DB/Redis exposure to the host only.
- - "${DB_HOST_PORT:-5434}:5432"
+ - "127.0.0.1:${DB_HOST_PORT:-5434}:5432"- - "${REDIS_HOST_PORT:-6379}:6379"
+ - "127.0.0.1:${REDIS_HOST_PORT:-6379}:6379"Also applies to: 23-23
🤖 Prompt for AI Agents
In docker-compose.yml around lines 10 and 23, the port mappings currently expose
DB and Redis on all network interfaces; change the mappings to bind to localhost
by prefixing host ports with 127.0.0.1 (e.g.
"127.0.0.1:${DB_HOST_PORT:-5434}:5432") for the DB and similarly for Redis so
both services are only accessible from the host loopback interface.
| docker-compose.yml | ||
| git switch -c feature/docker-variables |
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Remove stray, non-YAML lines breaking the compose file.
These two lines are literal text inside the YAML and cause the syntax error flagged by yamllint. Delete them.
volumes:
db_data:
-docker-compose.yml
-git switch -c feature/docker-variables📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| docker-compose.yml | |
| git switch -c feature/docker-variables | |
| volumes: | |
| db_data: |
🧰 Tools
🪛 YAMLlint (1.37.1)
[error] 41-41: syntax error: could not find expected ':'
(syntax)
🤖 Prompt for AI Agents
In docker-compose.yml around lines 40 to 41 there are two stray non-YAML lines
("docker-compose.yml" and "git switch -c feature/docker-variables") embedded in
the file; remove those two literal lines so the file contains only valid YAML
content and re-run yamllint to verify syntax.
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🚀 Volunchain Pull Request
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📝 Changes description
Add environment variables to docker for this uses the envs
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