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Small, practical examples. Search by task or narrow things down below.

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Docker / ComposeGetting Started

Disable networking for a local command

Docker / Compose: Disable networking for a local command using a locally available Ubuntu image.

Docker / Compose✓ Tested
Docker / ComposeLimits & process security

Drop all optional Linux capabilities

Docker / Compose: The effective capability mask becomes zero after cap-drop ALL.

Docker / Compose✓ Tested
Docker / ComposeCompose service options

Drop capabilities for a Compose service

Docker / Compose: cap_drop ALL removes optional Linux capabilities.

Docker / Compose✓ Tested
Docker / ComposeGetting Started

Drop Linux capabilities for a simple command

Docker / Compose: Drop Linux capabilities for a simple command using a locally available Ubuntu image.

Docker / Compose✓ Tested
Docker / ComposeCompose service options

Enable an init process for a service

Docker / Compose: init adds a small PID 1 process to forward signals and reap children.

Docker / Compose✓ Tested
CSSResponsive conditions & sizing

Enhance a layout above a minimum viewport width

CSS: A mobile-first min-width query adds columns when enough horizontal space is available.

CSS✓ Tested
Docker / ComposeDockerfile patterns

Exclude files from the build context

Docker / Compose: A dockerignore file prevents selected local files from being copied.

Docker / Compose✓ Tested
Docker / ComposeImage management

Export a container filesystem into a new image

Docker / Compose: export contains filesystem data; import creates a new image from it.

Docker / Compose✓ Tested
Docker / ComposeContainer lifecycle

Find a named container in the created state

Docker / Compose: Combine name and status filters to narrow a listing.

Docker / Compose✓ Tested
PythonMappings & sets

Find values missing from another collection

Python: Use a set difference to identify requested IDs absent from the available IDs.

Python✓ Tested
CSSResponsive design

Fit as many columns as possible

Use auto-fit and minmax for a CSS grid that responds to its available width.

CSS✓ Tested
Docker / ComposeContainer lifecycle

Force a disposable container to stop

Docker / Compose: kill sends SIGKILL by default without a graceful shutdown interval.

Docker / Compose✓ Tested