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Development environment

Run fabric8-ui with remote backends

You need to setup your shell to point to the right cluster so that it can talk to the required back end services like KeyCloak, WIT, Forge, OpenShift etc.

We provide various sample environments out of the box which make it easier to get started. They are all located as bash scripts in environments.

The default one you should use when you want to develop on the console is to reuse production cluster:

source environments/

There are others too. For example if you want to try run fabric8 locally on minishift and connect fabric8-ui to it then try:

source environments/

NOTE: If you want to target a local WIT backend, check our wiki How To pages.

Build and Run

Run npm install. This will download all the required dependencies to be able to start the UI.

Run npm start. This will start the UI with live reload enabled. Then navigate to http://localhost:3000.

VS Code

Run ext install EditorConfig to read the .editorconfig file

HTML, CSS and Less

| Code Guidelines

fabric8-ui uses HTML5 elements where appropriate, and practices practicality over purity. Use the least amount of markup with the fewest intricacies as possible.

Attribution order, syntax definitions and declaration order are an important aspect of the fabric8-ui code and should be followed according the the guidelines.

fabric8-ui uses Less for it's stylesheets. If you find yourself wanting to create a shared style that multiple components will use, then we recommend adding it to an existing .less file in the src/assets/stylesheets/shared/ directory. Only update these styles if you are making a truly global style, and are going to synchronize your changes across all of the various UI projects.

If you only want to make a change to a specific component, do so in that component's .less file, according to Angular best practices.

The file osio.less is imported into every component Less file using @import (reference), so all files inside of the /shared directory will be used by each component.

Code Quality

fabric8-ui utilizes stylelint and htmlhint to check the less and html code. As part of each linter, we include three files: .stylelintrc, .stylelintignore and .htmlhintrc.

The .stylelintrc configuration file controls our configuration for the stylelinter, which only checks folders and files that are not included in the .stylelintignore file. This allows us to exclude certain areas of the application, as needed.

The .htmlhintrc configuration file controls our HTML verification configuration. In the creation of this configuration, we have taken into account the various Angular elements that will exist in the HTML pages.

Running the code quality checks

Each linter is built into the build process, so running npm run build or npm start will display any errors, their location (file name and line number), and any error message(s). Whenever a file that is watched by the code quality checks is changed, the build (if started with npm start) will re-run, checking only the altered files.

If you would like to run either of these checks individually, without kicking off a full build, you can do so by installing stylelint and htmlhint globally:

npm install stylelint -g
npm install htmlhint -g

After installing stylelint and htmlhint globally, you can run the following commands:

  • stylelint "**/*.less"

This will run stylelint against all .less files in fabric8-ui/src, using the .stylelintrc configuration file.

  • htmlhint

This will run htmlhint against all html files in fabric8-ui/src, using the .htmlhintrc configuration file. This command will not ignore the files and folders dictated in the webpack.common.js file, leading to the possibility of errors being displayed that will not appear at build time.

Alternatively, if you would like to check a subset of folders, or a specific file, you can do so by altering your htmlhint command:

  cat src/app/layout/header/header.component.html | htmlhint stdin


fabric8-ui uses rxjs to provide loose coupling between modules (both those in the code base and those integrated via NPM). To do this, fabric8-ui makes extensive use of the Broadcaster.


Space changed

When the current space the user is viewing changes, fabric8-ui broadcasts with the key spaceChanged and the
new Space as the payload.

UI integrations


To send a notification to the user, the module should import ngx-fabric8-wit and inject the Notifications service, and call the message() method, passing in a Notification. You can subscribe to the result of message() to observe any NotificationActions that result from the notification.

Continuous Delivery & Semantic Releases

In ngx-fabric8-wit we use the semantic-release plugin. That means that all you have to do is use the AngularJS Commit Message Conventions (documented below). Once the PR is merged, a new release will be automatically published to and a release tag created on GitHub. The version will be updated following semantic versioning rules.

Commit Message Format

A commit message consists of a header, body and footer. The header has a type, scope and subject:

<type>(<scope>): <subject>

The header is mandatory and the scope of the header is optional.

Any line of the commit message cannot be longer 100 characters! This allows the message to be easier to read on GitHub as well as in various git tools.


If the commit reverts a previous commit, it should begin with revert:, followed by the header of the reverted commit. In the body it should say: This reverts commit <hash>., where the hash is the SHA of the commit being reverted.


If the prefix is fix, feat, or perf, it will always appear in the changelog.

Other prefixes are up to your discretion. Suggested prefixes are docs, chore, style, refactor, and test for non-changelog related tasks.


The scope could be anything specifying place of the commit change. For example $location, $browser, $compile, $rootScope, ngHref, ngClick, ngView, etc...


The subject contains succinct description of the change:

  • use the imperative, present tense: "change" not "changed" nor "changes"
  • don't capitalize first letter
  • no dot (.) at the end


Just as in the subject, use the imperative, present tense: "change" not "changed" nor "changes". The body should include the motivation for the change and contrast this with previous behavior.


The footer should contain any information about Breaking Changes and is also the place to reference GitHub issues that this commit Closes.

Breaking Changes should start with the word BREAKING CHANGE: with a space or two newlines. The rest of the commit message is then used for this.

A detailed explanation can be found in this document.

Based on


Appears under "Features" header, pencil sub-header:

feat(pencil): add 'graphiteWidth' option

Appears under "Bug Fixes" header, graphite sub-header, with a link to issue #28:

fix(graphite): stop graphite breaking when width < 0.1

Closes #28

Appears under "Performance Improvements" header, and under "Breaking Changes" with the breaking change explanation:

perf(pencil): remove graphiteWidth option

BREAKING CHANGE: The graphiteWidth option has been removed. The default graphite width of 10mm is always used for performance reason.

The following commit and commit 667ecc1 do not appear in the changelog if they are under the same release. If not, the revert commit appears under the "Reverts" header.

revert: feat(pencil): add 'graphiteWidth' option

This reverts commit 667ecc1654a317a13331b17617d973392f415f02.

Commitizen - craft valid commit messages

Commitizen helps you craft correct commit messages. Install it using npm install commitizen -g. Then run git cz rather than git commit.