rtldev-middleware-devcontainer-features

Shared devcontainer Features for RTLDEV middleware repositories, published to ghcr.io and consumed by version rather than copied.

Feature	What it provides
`devbase`	zsh with the team prompt, commitizen, pnpm, the `gh` credential helper, persistent shell history, dependency installation, attach banner

Quick start

Add one entry to your repository's .devcontainer/devcontainer.json:

"features": {
  "ghcr.io/devcontainers/features/node:2": { "version": "lts" },
  "ghcr.io/centralnicgroup-opensource/rtldev-middleware-devcontainer-features/devbase:1": {}
}

Only the second line is strictly required. devbase declares node (at lts), github-cli and claude-code in dependsOn, so it installs all three itself, before itself. The node entry above is kept because it deduplicates with devbase's own — same feature, same options, one install — and it documents the runtime at the point people look for it. Other runtimes (php, go, python, java) are genuinely yours: devbase installs none of those and only orders itself after them.

Rebuild the container. That is the whole integration for a repository whose defaults are fine.

Starting a repository from scratch? Copy a devcontainer frame from rtldev-middleware-template instead — the frames come with this entry already in place.

Contents

The devbase Feature
Why a Feature and not copied files
Options
Configuring the attach banner
Migrating a repository that already has a devcontainer
Developing a Feature
Publishing
Keeping consumers up to date
Troubleshooting

The `devbase` Feature

devbase is the shared behaviour half of our devcontainer setup. It installs no language runtime of its own — php, go, python and java stay in each repository's feature list, and devbase declares installsAfter for them so its setup steps run once those runtimes exist. Node is the exception, and a deliberate one: see below.

Three features it does not leave to the consumer, declared in dependsOn rather than installsAfter: github-cli, because the gh credential helper below is useless without gh; claude-code, because it is on every one of our machines anyway; and node at lts, because devbase's own pnpm and commitizen steps need npm, and because claude-code installs Node 18 from nodesource — EOL since April 2025 — when it cannot find a Node of its own. installsAfter is only a hint: it orders a feature the consumer already listed and does nothing when they did not, so it could never have carried these three.

On the Node pin. Keep "ghcr.io/devcontainers/features/node:2": { "version": "lts" } in your devcontainer.json if it is already there — identical options deduplicate, so it collapses into devbase's own entry and changes nothing. It is now optional rather than required.

What you cannot do is pin a different version. Differing options do not deduplicate: both instances install, devbase's runs second, and its default -> lts/* replaces yours — a repository asking for 22 measurably ended up on 24. So devbase owns the Node version for every consumer. If a repository genuinely needs another major, that is a change to devbase's dependsOn and a release, not something to arrange locally. The node_pinned scenario asserts the override so it stays visible rather than surprising.

A knock-on: the Node feature ships pnpmVersion: latest, so pnpm is present in every container before devbase runs. The installPnpm option therefore decided nothing and has been removed — pnpm is now simply part of what you get. Nothing consumes this Feature yet, which is the only reason dropping an option did not need a major.

What it does, on first create and on every attach:

zsh with the team prompt (git status segment, history search, autosuggestions)
commitizen plus cz-conventional-changelog, and the matching .czrc
pnpm, installed globally, with PNPM_HOME on PATH
gh credential helper wired into the workspace's git config
Persistent shell history across container rebuilds
Dependency installation — composer.json via composer, package.json via pnpm, .env seeded from .env.example
A UTF-8 locale (LANG=C.UTF-8) for the whole container, not just interactive shells
An attach banner reporting the container, language and dependency versions
The shared VS Code extension set, the zsh terminal profile and a few editor settings — shellcheck, npm.packageManager, and files.exclude hiding **/node_modules

On overriding the VS Code settings. A setting you declare in your own devcontainer.json wins over the Feature's, and for an object-valued setting that is a whole-object replacement, not a deep merge — VS Code does not merge object values across settings scopes.

files.exclude is the one this bites. A repository that adds **/vendor by declaring its own files.exclude silently loses the inherited **/node_modules entry, because its object replaces the Feature's rather than extending it. Restate what you want to keep:
"customizations": {
  "vscode": {
    "settings": {
      "files.exclude": {
        "**/node_modules": true, // restate, or you lose it
        "**/vendor": true
      }
    }
  }
}
Which also means there is no separate opt-out to build: "**/node_modules": false un-hides it, and so does simply leaving the key out of your own object.

On the locale. Our base images ship no LANG, which leaves the C library in the C locale with an ASCII charmap — inherited by every tool that reads a file, so any source file with an em-dash in a comment decodes wrong somewhere. The Feature declares containerEnv: { "LANG": "C.UTF-8" }, which the CLI bakes into the image as an ENV, so it reaches non-interactive processes and lifecycle commands too — a /etc/profile.d snippet would not.

C.UTF-8 is built into glibc (no locales package, no locale-gen) and collates by codepoint exactly as C does, so sort and [a-z] ranges in existing scripts are unaffected. Only the charmap changes.

There is no option for it, on the same reasoning that keeps mounts unused: containerEnv is static JSON with no option substitution, so a flag could not switch it off and would only be a lie. Set containerEnv.LANG in your own devcontainer.json to override — the CLI emits the consumer's containerEnv after the feature layer, so it wins — and make sure the locale you name exists in the image, because setlocale falls back to C in silence when it does not.

Why a Feature and not copied files

Because the container frames differ across our repositories and the behaviour does not.

php-sdk and mcp-dis build a single container from a Dockerfile; whmcs-src runs its dev container as one service in a four-service compose stack. No shared devcontainer.json or Dockerfile spans those. What was shared, before this Feature existed, was the behaviour — and it had been copy-pasted into each repository and then drifted: the log_*/execute_with_indent/setup_pnpm block existed in three near-identical copies, .zshrc differed by 29 lines between two repositories for no reason anyone chose, and the attach banner had been reinvented three times.

A Feature installs into a container built either way, is versioned, and is pinned by digest in each consumer's devcontainer-lock.json. Copied files are none of those things. Getting a new version into that lock is its own problem — see Keeping consumers up to date.

Options

All optional; the defaults are what php-sdk and mcp-dis want.

Option	Default	What it does
`commonPackages`	`true`	Installs `wget jq git zip unzip curl zsh shellcheck`. Turn off for a base image that already has them.
`timezone`	`Europe/Berlin`	Written to `/etc/localtime` and `/etc/timezone`. Empty string leaves the image alone.
`globalPackages`	`commitizen@latest,cz-conventional-changelog@latest`	Comma-separated global pnpm installs. Empty installs nothing.
`zshAutosuggestions`	`true`	Installs the zsh-autosuggestions plugin.
`historyPersistence`	`true`	Symlinks `~/.zsh_history` to `/WSL_USER/.zsh_history`, creating the host file if it does not exist yet. Needs the host home mounted at `/WSL_USER`; skipped silently if not.
`ghCredentialHelper`	`true`	Points the workspace git credential helper at `gh auth git-credential`.
`sshCommitSigning`	`true`	Repairs SSH commit signing when a mounted host `~/.gitconfig` points `user.signingkey` at a key file the container lacks; uses the forwarded ssh-agent and writes an inline `key::` key to the workspace git config. Never enables signing you did not configure.
`envInfoBanner`	`true`	Prints the toolchain banner on attach; also installs `devbase-env-info`.
`installProjectDependencies`	`true`	Installs from `composer.json` / `package.json` and seeds `.env` from `.env.example`.
`autoloadEnvScript`	`true`	Sources a workspace `env.sh` from `~/.zshenv` so new terminals inherit it.
`installRtk`	`true`	Installs RTK, the token-optimizing CLI proxy for Claude Code. Binary only — the hook stays in the mounted `~/.claude`.
`rtkVersion`	`0.45.0`	RTK release to install, without the leading `v`. Checksum-verified against the release's `checksums.txt`.

A stack elaborate enough to own its own setup turns the generic part off:

"ghcr.io/centralnicgroup-opensource/rtldev-middleware-devcontainer-features/devbase:1": {
  "installProjectDependencies": false,
  "timezone": "Europe/London"
}

Two things worth knowing about consuming it:

Pin the major (:1), not a patch. A new 1.x is picked up on the next rebuild, and the digest recorded in devcontainer-lock.json keeps the build reproducible in between.
Lifecycle order. The Feature's postCreateCommand and postAttachCommand run before the ones in your devcontainer.json, so your own hooks can rely on pnpm, the global packages and your dependencies already being installed. Put repository-specific setup there — never fork the Feature's scripts.

RTK

RTK is a token-optimizing CLI proxy for Claude Code: a PreToolUse hook rewrites shell commands and filters their output, cutting a large share of the tokens tool results otherwise consume.

It is installed here, rather than in each repository's Dockerfile, because of an asymmetry (RSRMID-2933). The hook lives in ~/.claude/settings.json, which every frame bind-mounts from the host — so the configuration is shared between host and container while the binary is not. A container without rtk fires a hook that exits 127 on every Bash call: no savings, plus an error each time. Installing it centrally means the binary follows the hook into every repository instead of being re-pasted into each one.

Binary here, hook in the repository

RTK needs two halves, and they are centralised in different places:

Half	Lives in	Why there
the `rtk` binary	this Feature	it must exist inside the container, which is what the Feature builds
the `PreToolUse` hook that calls it	the consuming repository's committed `.claude/settings.json`	it is configuration: reviewable, versioned, and identical for everyone on the team

The hook is not written by this Feature, and that is deliberate. The only per-user settings file in the container is ~/.claude/settings.json, which every frame bind-mounts from the host — writing it would edit the developer's own workstation configuration from inside a container, and rtk init -g is never run for the same reason.

Leaving the hook to each developer's personal ~/.claude was the other option, and it is what the original arrangement did. It means RTK is active for whoever configured it by hand and inert for everyone else, which is the team-wide-versus-personal problem restated rather than solved. So the hook belongs in the repository, and rtldev-middleware-template ships it in .claude/settings.json:

{
  "type": "command",
  "command": "command -v rtk >/dev/null 2>&1 && exec rtk hook claude || exit 0",
  "statusMessage": "Optimizing command output (RTK)"
}

The guard is the load-bearing part. That one committed file is read on the host, in CI and inside the container, but only the container is guaranteed to have rtk. Unguarded, it would exit 127 on every Bash call made outside the container — the same defect as a container with the hook but no binary, pointing the other way. Guarded, it activates precisely where the Feature has installed the binary and is a silent no-op everywhere else.

Remove the personal copy. If you already have rtk hook claude in your own ~/.claude/settings.json, delete it once a repository carries the hook. Hooks from user and project settings both fire, and this one returns an updatedInput that rewrites the command — two hooks rewriting the same tool call is not a defined outcome.

Other deliberate choices

Only the binary. rtk init -g is never run — it would rewrite the bind-mounted ~/.claude/settings.json, which is shared with the host.
Pinned and checksum-verified. The version is an option, and the download is checked against the release's own checksums.txt, so a curl-fetched third-party binary is not an unverified supply-chain surface.
Fails the build rather than warning. RTK is opted into; continuing without it leaves a hook erroring on every Bash call, which is harder to diagnose than a build that stops and says why. Use "installRtk": false to opt out — per repository, or per developer via a local config.

Upstream publishes a musl build for x86_64 but only a gnu build for aarch64, so the two architectures do not share a naming pattern; install.sh maps uname -m to the right asset and skips with a warning on an architecture with no published build.

The banner shows the installed version, which is where "hook configured but binary missing" becomes visible.

Configuring the attach banner

With no configuration the banner titles itself from the repository directory name and shows each language group whose runtime is present. To override, add .devcontainer/env-info.conf to the consuming repository:

TITLE="PHP-SDK - development environment"
SHOW_PHP=auto          # auto | true | false, likewise SHOW_NODE/GO/PYTHON/JAVA
PHP_EXTENSIONS="curl intl xdebug"
PHP_NOTE="(language-feature ceiling: 8.3)"
NODE_DEPS="@modelcontextprotocol/sdk express zod"
COMPOSER_DEPS=""
EXTRA_ROWS="Apache|apache2 -v|3
MariaDB|mariadb --version|"

The file is sourced as shell, so quote values containing spaces. EXTRA_ROWS takes one Label|command|field-index per line, where the field index picks a whitespace-separated field (1–3) and defaults to the whole first line of output.

Run devbase-env-info to see the result without reattaching.

Dependency versions are read from node_modules/ and vendor/, never from the manifest, so an empty row means "install has not run" rather than "unknown" — the distinction that makes the banner worth reading.

Migrating a repository that already has a devcontainer

Roughly 30 minutes per repository. Work on a branch and rebuild before you delete anything.

Add the Feature to devcontainer.json's features block.

Delete what it replaces. For a repository on the php-sdk/mcp-dis pattern, that is the whole shared supporting_files/ tree:

.devcontainer/supporting_files/scripts/post-create.sh
.devcontainer/supporting_files/scripts/post-attach.sh
.devcontainer/supporting_files/scripts/env-info.sh
.devcontainer/supporting_files/configuration/home/.zshrc
.devcontainer/supporting_files/configuration/home/.czrc

Keep anything genuinely repository-specific — php-sdk's phpunit-wrapper.sh and its php/*.ini files, for instance.

Strip the Dockerfile down to the base image plus whatever this repository actually needs. The apt-get block, timezone lines, usermod --shell, and the COPY of the zsh/commitizen config are all the Feature's job now.
Repoint the lifecycle commands. Delete postCreateCommand and postAttachCommand if they only ran the shared scripts. If the repository has its own setup, keep a postCreateCommand for just that part.

Generalise the workspace paths (single-container frames only):

"workspaceMount": "source=${localWorkspaceFolder},target=/usr/share/${localWorkspaceFolderBasename},type=bind,consistency=cached",
"workspaceFolder": "/usr/share/${localWorkspaceFolderBasename}"

Compose frames keep the literal path, because compose resolves its volumes independently and the two must agree.

Move the banner content from the deleted env-info.sh into .devcontainer/env-info.conf.
Trim the extension list. The Feature contributes the shared six; delete those from the repository's list and keep only the language-specific ones.
Rebuild, then check: the prompt renders, devbase-env-info reports the right versions, cz --version works, git push authenticates through gh, and shell history survived the rebuild.
Keep a ~/.zshrc.local if you had personal shell additions in the old .zshrc — the Feature's copy is overwritten on rebuild by design, and .zshrc.local is sourced at the end and never touched.

Developing a Feature

This repository's own devcontainer consumes devbase from the registry, exactly as a consumer does — so this environment is a standing check that the published artifact works. The working tree is exercised by the test suite instead:

pnpm features:test                        # default options + every scenario, real builds
pnpm features:test -- --filter minimal    # one scenario, while iterating
pnpm features:lint                        # shellcheck + metadata validation
pnpm lint:workflows                       # actionlint over .github/workflows
pnpm lint                                 # all of the above plus prettier

pnpm lint runs the same checks CI does, from the same scripts, so a green run locally means a green run in CI. lint:workflows is the one that cannot be left to CI alone: an invalid workflow file never starts, so the actionlint job that would report it is one of the jobs that does not run. It downloads a pinned, checksum-verified actionlint into .cache/ on first use unless one is already on PATH.

pnpm features:test builds real containers straight from features/src/, so it is the iteration loop — no publish, no copy, nothing to keep in sync. It needs a Docker daemon, which is why the devcontainer includes docker-in-docker.

Running the working-tree Feature in your own container

Occasionally you want your own environment built from the branch. There is a second config for that — .devcontainer/local/devcontainer.json, offered by VS Code's config picker as "working tree":

pnpm devbase:local        # copy features/src/devbase -> .devcontainer/local/devbase
                          # then rebuild, choosing the "working tree" config
pnpm devbase:local:check  # is the copy still current?
pnpm devbase:local:clean

Re-run pnpm devbase:local after each edit; forgetting is the one hazard of a copy, and the reason this is the exception rather than the default. That config's initializeCommand now runs the check for you and fails the build on a stale copy, because the failure is otherwise unrecognisable as one: a copy predating dependsOn, in a config that has stopped listing what dependsOn supplies, yields a container with no node, npm, pnpm, gh or claude — while zsh and rtk are present, because the old copy installs those itself. It reads as a broken registry rather than a missing cp.

The copy is not laziness — the devcontainer CLI leaves no better option, and all three alternatives were measured:

Reference	Result
`"../features/src/devbase"`	Refused: "Local file path parse error. Resolved path must be a child of the `.devcontainer/` folder."
symlink at `.devcontainer/devbase`	Passes the path check, then fails the fetch step — the CLI needs a real directory
real copy inside `.devcontainer/`	Works

Copying it in from initializeCommand does not help either: features are resolved before initializeCommand runs. The alternate config lives at .devcontainer/local/ precisely so its "./devbase" resolves inside .devcontainer/ and is accepted.

First publish

Until devbase:1 has been published once there is nothing for the default config to pull. Run the Publish features (manual) workflow once, or use pnpm devbase:local, before building the default container on a fresh repository.

Layout:

features/
├── src/devbase/
│   ├── devcontainer-feature.json   # id, version, options, extensions, lifecycle hooks
│   ├── install.sh                  # build-time, as root, no workspace yet
│   ├── bin/
│   │   ├── devbase-post-create.sh  # first create, as the user, workspace mounted
│   │   └── devbase-post-attach.sh  # every attach
│   ├── lib/
│   │   ├── log.sh                  # logging + execute_with_indent
│   │   ├── setup.sh                # the shared setup steps
│   │   └── env-info.sh             # the banner (also installed as devbase-env-info)
│   └── config/{.zshrc,.czrc}       # user shell configuration
└── test/devbase/
    ├── test.sh                     # default options
    ├── scenarios.json              # non-default option combinations
    ├── minimal.sh                  # every option off
    └── node_project.sh             # alongside the Node feature

The build-time / create-time split is the thing to get right. install.sh runs as root while the image builds, before the workspace is mounted — so it can only do image-level work. Anything that reads the repository (its manifests, its env-info.conf) must go in devbase-post-create.sh.

Two conventions the shell code follows throughout, both learned from real breakage:

A missing prerequisite is reported and skipped, never fatal. A container that comes up without pnpm is fixable from a terminal; one that refuses to come up is not.
zsh does not word-split unquoted parameter expansions. for x in ${LIST} iterates once over the whole string under zsh while splitting correctly under bash. Route lists through the words() helper, which uses a command substitution — zsh splits those.

Run the tests:

pnpm features:test              # default options + every scenario
pnpm features:test -- --filter minimal   # one scenario, while iterating
pnpm features:lint              # shellcheck + metadata validation
pnpm lint                       # the above plus prettier and actionlint

Assert on effects, not on log lines, and check a new assertion against a deliberately broken implementation before trusting it. A check that cannot fail is worse than no check: it reports SUCCESS and sends the next person looking somewhere else.

Publishing

Releases are semantic-release, driven by commit type — nobody edits version in devcontainer-feature.json by hand. On a push to main, release.yml works out the next version from the commits, writes it into the Feature metadata, commits and tags it, and publishes to ghcr.io in the same run.

Commit	Result for a consumer pinned to `:1`
`fix(devbase): …`	patch — picked up on their next rebuild
`feat(devbase): …`	minor — picked up on their next rebuild
`feat(devbase): …` + `BREAKING CHANGE:`	major — not picked up until they change their pin
`ci` / `docs` / `chore` / `test` / …	nothing published

Release and publish are deliberately one job: semantic-release commits the version bump using GITHUB_TOKEN, and pushes made with that token do not trigger workflows — so a separate publish workflow listening on push would never fire for exactly the commit that matters.

Publishing is idempotent (a version already in the registry is skipped, not overwritten), which is why the publish step needs no guard, and why publish-features.yml exists as a manual escape hatch for the first publish and for re-publishing.

The first publish needs the package made public — ghcr.io packages default to private, and a private Feature fails every consumer's build with a 401. Set it under this repository's Packages → the devbase package → Package settings → Change visibility.

Keeping consumers up to date

A consumer with no devcontainer-lock.json needs nothing. Every rebuild re-resolves devbase:1 to the newest 1.x, so a release reaches them by rebuilding. That is the propagation story the copied-files approach never had — and for most consumers it is the whole story.

A consumer that commits a lock has to move the pin deliberately, and neither of the two mechanisms you would expect does it for them:

devcontainer upgrade only fills in missing entries. An entry that still satisfies its reference is re-emitted unchanged, and 1.2.0 satisfies :1 just as well as 1.4.0 does, so the command is a no-op for exactly the case you want it for.
Dependabot's devcontainers ecosystem bumps version references in devcontainer.json. A frame that references the moving tag devbase:1 has no reference to bump, so no PR is ever raised. This repository has that ecosystem configured and has never received a devcontainers PR, while receiving them for github-actions and npm — the updater works, it simply has nothing to say about :1.

The result is a lock that silently stays put: this repository's own pinned 1.2.0 through four releases. To move it, drop the entry and re-resolve:

jq 'del(.features["ghcr.io/centralnicgroup-opensource/rtldev-middleware-devcontainer-features/devbase:1"])' \
  .devcontainer/devcontainer-lock.json > /tmp/lock && mv /tmp/lock .devcontainer/devcontainer-lock.json
npx devcontainer upgrade --workspace-folder .
npx prettier --write .devcontainer/devcontainer-lock.json

Deleting the whole lock instead re-resolves every feature, which is fine but a wider diff. The prettier line is not optional: the CLI writes the lock with no trailing newline and pnpm lint rejects it.

If you want Dependabot to do this for you, reference a precise version — devbase:1.4.0 rather than devbase:1 — and accept a PR per release instead of a moving major. That is a real trade: the moving tag is what makes a patch reach every repository without ceremony.

Troubleshooting

401 Unauthorized pulling the Feature. The ghcr.io package is still private — see Publishing.

The banner does not appear on attach. It runs from postAttachCommand; check the Dev Containers output panel. Run devbase-env-info by hand to separate "the banner is broken" from "the hook did not fire". A syntax error in .devcontainer/env-info.conf is the usual cause, and the banner deliberately exits 0 regardless so it can never block an attach.

The prompt is plain, with no git segment. .zshrc is only fully active for an interactive, non-CI shell, and the theme needs Oh My Zsh in the image (the mcr.microsoft.com/devcontainers/base images have it). A base image without it still gets a working shell, just unthemed.

Shell history did not survive a rebuild. historyPersistence needs the host home bind-mounted at /WSL_USER; check the frame's mounts (or the compose service's volumes). The step is skipped silently when the mount is absent, because that is a legitimate configuration. A host with no ~/.zsh_history yet is not that case — the file is created and linked, so persistence starts on the first create rather than waiting for a file nothing would ever write.

/WSL_USER is empty in post-create. The mount exists but its source path resolved to nothing, and Docker created the missing source as an empty directory. On Windows hosts the usual cause is the ${localEnv:HOME}${localEnv:USERPROFILE} idiom used to name the host home: it relies on exactly one of the two being set, and concatenates them into a nonexistent path when both are. Fix the source= in the frame's mounts — the Feature reports this rather than seeding a history file into a directory the host never sees.

pnpm: command not found in post-create. No Node toolchain in the container. Add ghcr.io/devcontainers/features/node:2 — installsAfter then guarantees it is installed before the Feature's post-create runs.

A change to the Feature had no effect. Either version was not bumped (a duplicate version is skipped at publish), or the consumer has not rebuilt. Rebuild without cache to be sure: Dev Containers: Rebuild Container Without Cache.

Personal shell customisations disappeared. Expected — the Feature owns ~/.zshrc and overwrites it on rebuild, which is what stops the prompt drifting per repository. Put them in ~/.zshrc.local.

Related repositories

rtldev-middleware-template — the template repository new projects are created from; it ships the devcontainer frames that consume this Feature.
rtldev-middleware-shareable-workflows — the reusable GitHub Actions workflows those repositories delegate CI to.

Maintainers

Kai Schwarz — KaiSchwarz-cnic
Asif Nawaz — AsifNawaz-cnic

License

MIT — see LICENSE.

Name		Name	Last commit message	Last commit date
.claude		.claude
.devcontainer		.devcontainer
.github		.github
.husky		.husky
features		features
scripts		scripts
.editorconfig		.editorconfig
.gitattributes		.gitattributes
.gitignore		.gitignore
.prettierignore		.prettierignore
.prettierrc		.prettierrc
.releaserc.json		.releaserc.json
CLAUDE.md		CLAUDE.md
CONTRIBUTING.md		CONTRIBUTING.md
HISTORY.md		HISTORY.md
LICENSE		LICENSE
README.md		README.md
package.json		package.json
pnpm-lock.yaml		pnpm-lock.yaml

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rtldev-middleware-devcontainer-features

Quick start

The `devbase` Feature

Why a Feature and not copied files

Options

RTK

Binary here, hook in the repository

Other deliberate choices

Configuring the attach banner

Migrating a repository that already has a devcontainer

Developing a Feature

Running the working-tree Feature in your own container

First publish

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rtldev-middleware-devcontainer-features

Quick start

The devbase Feature

Why a Feature and not copied files

Options

RTK

Binary here, hook in the repository

Other deliberate choices

Configuring the attach banner

Migrating a repository that already has a devcontainer

Developing a Feature

Running the working-tree Feature in your own container

First publish

Publishing

Keeping consumers up to date

Troubleshooting

Related repositories

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The `devbase` Feature