redis-docker VS Moby

version: "3.7" services: postgres: image: "postgres:14-alpine" environment: POSTGRES_USER: "example" POSTGRES_PASSWORD: "example" ports: - "5432:5432" volumes: - "postgres:/var/lib/postgresql/data" redis: image: "redis:5-alpine" command: ["redis-server", "--requirepass", "yourpassword", "--appendonly", "yes"] healthcheck: test: ["CMD", "redis-cli", "ping"] interval: 10s timeout: 5s retries: 5 ports: - "6379:6379" volumes: - redis:/data sysctls: # https://github.com/docker-library/redis/issues/35 net.core.somaxconn: "511" sidekiq: depends_on: - "postgres" - "redis" - "elasticsearch" build: context: . args: environment: development image: you/yourapp command: bundle exec sidekiq -C config/sidekiq.yml.erb volumes: - ".:/app" # don"t mount tmp directory - /app/tmp env_file: - ".env" web: build: context: . args: environment: development image: you/yourapp command: bundle exec rspec depends_on: elasticsearch: condition: service_healthy postgres: condition: service_started redis: condition: service_healthy tty: true stdin_open: true ports: - "3000:3000" env_file: - ".env" elasticsearch: container_name: elasticsearch image: docker.elastic.co/elasticsearch/elasticsearch:7.4.2 environment: - discovery.type=single-node - cluster.name=docker-cluster - bootstrap.memory_lock=true - "ES_JAVA_OPTS=-Xms1024m -Xmx1024m" - "logger.org.elasticsearch=error" healthcheck: test: curl --fail elasticsearch:9200/_cat/health >/dev/null || exit 1 interval: 30s timeout: 10s retries: 5 ulimits: memlock: soft: -1 hard: -1 volumes: - esdata:/usr/share/elasticsearch/data ports: - 9200:9200 volumes: redis: postgres: esdata:

I was caught out by this too[0]. I now have a fw script which runs automatically for demos etc.

[0] https://github.com/docker-library/redis/issues/259#issuecomm...

Short hack: As seen in m a n y Dockerfiles, the apt cache is located at /var/lib/apt/lists.

Having been featured in our February 2023, and January 2024 Release Radars, Moby is the original Linux Container runtime. This new version adds a bunch of changes to the Docker CLI and Moby itself with additional features. There's bug fixes and enhancements, with the main thing for users to be on the look out for containers that were created using Docker Engine 25.0.0. These containers might have duplicate MAC addresses, and thus must be recreated. The same goes for those containers created with Moby 25.0+ and with user defined MAC addresses. Read up on all these changes in the release notes.

Formlabs does this as well for their 3d printers, my earliest encounter of this was when Docker started getting popular: https://github.com/moby/moby/blob/master/pkg/namesgenerator/...

Try to use moby instead since that is the engine in Docker.

https://github.com/moby/moby

> Podman is designed to help with this by providing stronger default security settings compared to Docker. Features like rootless containers, user namespaces, and seccomp profiles, while available in Docker, aren't enabled by default and often require extra setup.

Seccomp has been enabled by default since 2015: https://github.com/moby/moby/pull/18780

It is true that Rootless isn't enabled by default but its "extra setup" can be done with a single command (`dockerd-rootless-setuptool.sh install`)

Perhaps.

Thing is, https://github.com/moby/moby/blob/670bc0a46c4ca03b75f1e72f73... is using https://github.com/mistifyio/go-zfs which features code like `out, err := zfsOutput("get", "-H", key, d.Name)` (Source: https://github.com/mistifyio/go-zfs/blob/master/zfs.go#L315) to get a single zfs property.

Somebody chose to use a library as abstraction that looks good but is implemented as a MVP (nothing wrong with that). "In the future, we hope to work directly with libzfs" should have raised an alarm somewhere, though.

AppArmor can restrict /proc and this is even used by docker: https://github.com/moby/moby/blob/master/contrib/apparmor/te...