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Docker / ComposeCompose service options

Run a Compose service as a non-root user

Docker / Compose: user overrides the image’s default identity.

Docker / Compose✓ Tested
Docker / ComposeGetting Started

Run a Compose service as a numeric user

Docker / Compose: Run a Compose service as a numeric user in a small Compose file.

Docker / Compose✓ Tested
Docker / ComposeContainer commands

Run a one-off container

Run a command and remove its stopped container automatically.

run✓ Tested
Docker / ComposeExecution & file transfer

Run a one-off process with a numeric user ID

Docker / Compose: The user option overrides the image’s default identity.

Docker / Compose✓ Tested
Docker / ComposeGetting Started

Run a process as an unprivileged user

Docker / Compose: Run a process as an unprivileged user using a locally available Ubuntu image.

Docker / Compose✓ Tested
C++Tasks & synchronization

Run a task on a thread and join it

C++: Join before reading a result written by the worker thread.

C++✓ Tested
Docker / ComposeBuild images

Run an image as a non-root user

Choose an unprivileged numeric identity for the default process.

Dockerfile✓ Tested
Docker / ComposeImage management

Run an image by its local immutable ID

Docker / Compose: Resolve the local image ID before invoking it.

Docker / Compose✓ Tested
PythonFunctions & error handling

Run cleanup around a custom context

Python: Use try/finally inside a contextmanager so cleanup runs even on failure.

Python✓ Tested
C++Ownership & optional values

Run cleanup through a scoped destructor

C++: A stack object’s destructor runs when its scope exits, including normal exception unwinding.

C++✓ Tested
Docker / ComposeGetting Started

Run with a read-only container filesystem

Docker / Compose: Run with a read-only container filesystem using a locally available Ubuntu image.

Docker / Compose✓ Tested
Docker / ComposeStorage & isolation

Run with a read-only root filesystem

Add a temporary writable location while protecting the image filesystem.

read-only✓ Tested