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Brooklyn

Apache Brooklyn UI Sub-Project

This repo contains the JavaScript UI for Apache Brooklyn plus server-side code to enable module lookup and discovery.

Essential contents:

  • modularity-server: Java OSGi modules to facilitate registering and discovering available modules
  • ui-modules: Individual Angular JS modules -- each can be run as a standalone Node app, or built as OSGi bundle including the WAR to be served collectively by an OSGi server (each using the modularity server-side endpoints to find available modules and allow navigation between them, and the home module providing a convenient entry point)
  • features: Build an OSGi feature

Building the project

Two methods are available to build this project: within a docker container or directly with maven.

Using docker

The project comes with a Dockerfile that contains everything you need to build this project. First, build the docker image:

docker build -t brooklyn:ui .

Then run the build:

docker run -i --rm --name brooklyn-ui -v ${HOME}/.m2:/root/.m2 -v ${PWD}:/usr/build -w /usr/build brooklyn:ui mvn clean install

Using maven

You will need the following binaries installed first:

  • java
  • maven (please note, you will need version 3.5.2 or later)
  • git
  • bzip2
  • libpng. This has different package names based on the distribution:
    • libpng-devel for CentOS
    • libpng-dev for Debian/Ubuntu (also requires libpng12)
    • libpng for MacOS

Optional, if the libpng cannot be found when building (package names may vary; often these are not required):

  • libpng (or libpng-devel on CentOS, libpng-dev on Debian/Ubuntu, libpng12 sometimes)
  • automake (opt)
  • autoconf
  • libtool
  • dpkg
  • pkgconfig
  • nasm
  • gcc
  • build-essential
  • bzip2
  • pngquant
  • libfontconfig1-dev

With this, simply run:

mvn clean install

Dev

Instructions for developing UI modules is included in subdirectories, but in short all you need to do once things are configured is to run make in the relevant module directory, with a Brooklyn REST server on 8081.

Documentation

For developers, the following links may be useful:

Troubleshooting

Build Failure (Cached Dependencies)

The first time mvn clean install or npm build is run, it will cache dependencies in node_modules. If a dependency is subsequently upgraded, this could cause an incompatibility. For example, it can cause a test failure such as:

20 06 2018 17:28:41.143:ERROR [karma]: { Error: spawn ENOTDIR
    at ChildProcess.spawn (internal/child_process.js:357:11)
    at spawn (child_process.js:528:9)
    at spawnWithoutOutput (/Users/aledsage/repos/apache/brooklyn/brooklyn-ui/ui-modules/utils/node_modules/karma/lib/launchers/process.js:141:24)

The fix is to delete the auto-generated node_modules directories:

cd /path/to/brooklyn_ui
find ./ -type d -name "node_modules" -exec rm -rf {} \+

Errors with libpng

On many systems the imagemin dependency of JS shows errors during install, often due to libpng missing or the jpeg compilation failing (note this one can be a non-fatal error at the time, but the build will then fail).

Consult the list above of dependencies to install, and make sure you wipe the node_modules dirs.

If it still fails, try installing nvm (curl-to-bash) then nvm ls-remote and nvm install v12.9.0 (or other latest). Then retry the mvn build; even though mvn uses a different version of node and npm, simply installing the latest node version sometimes sorts out errors.

Docker Build Failure (Dependencies for Wrong Architecture)

When the build is run locally, it will download executables such as phantomjs, for the local architecture. If the build is subsequently run in a Docker container, mounting the local repo directory, it may be incompatible. An example error is:

[INFO] 25 06 2018 15:26:48.224:ERROR [launcher]: PhantomJS stdout:
[INFO] 25 06 2018 15:26:48.224:ERROR [launcher]: PhantomJS stderr: /usr/build/ui-modules/utils/node_modules/phantomjs-prebuilt/lib/phantom/bin/phantomjs: 1: /usr/build/ui-modules/utils/node_modules/phantomjs-prebuilt/lib/phantom/bin/phantomjs: Syntax error: Unterminated quoted string

You can check the file type by running:

file ./ui-modules/utils/node_modules/phantomjs-prebuilt/lib/phantom/bin/phantomjs

./ui-modules/ui-utils/node_modules/phantomjs-prebuilt/lib/phantom/bin/phantomjs: Mach-O 64-bit executable x86_64

The fix is to delete the auto-generated node_modules directories:

cd /path/to/brooklyn_ui
find ./ -type d -name "node_modules" -exec rm -rf {} \+

Test Failure (PhantomJS)

Developers have experienced occasional test failures like:

[INFO] 26 06 2018 09:33:31.658:INFO [karma]: Karma v1.7.1 server started at http://0.0.0.0:9876/
[INFO] 26 06 2018 09:33:31.662:INFO [launcher]: Launching browser PhantomJS with unlimited concurrency
[INFO] 26 06 2018 09:33:31.707:INFO [launcher]: Starting browser PhantomJS
[INFO] 26 06 2018 09:33:41.858:INFO [PhantomJS 2.1.1 (Linux 0.0.0)]: Connected on socket 9qL2Zvu8cceP9O7ZAAAA with id 75060365
[INFO] 26 06 2018 09:33:52.659:WARN [PhantomJS 2.1.1 (Linux 0.0.0)]: Disconnected (1 times), because no message in 10000 ms.
[INFO] PhantomJS 2.1.1 (Linux 0.0.0) ERROR
[INFO]   Disconnected, because no message in 10000 ms.
[INFO]
[INFO]
[ERROR] npm ERR! Test failed.  See above for more details.
...
[ERROR] Failed to execute goal com.github.eirslett:frontend-maven-plugin:1.3:npm (npm test) on project brooklyn-ui-utils: Failed to run task: 'npm test' failed. (error code 1) -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
[ERROR]
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR]   mvn <goals> -rf :brooklyn-ui-utils

This appears to be a non-deterministic environment issue. The workaround is to run the test again, resuming the build from the failed module. For example:

mvn clean install -rf :brooklyn-ui-utils

Docker Build Failure on OS X (no such file)

Developers have experienced build failures on OS X like:

[ERROR] npm ERR! path /usr/build/ui-modules/app-inspector/node_modules/d3-dsv/bin/json2dsv
[ERROR] npm ERR! code ENOENT
[ERROR] npm ERR! errno -2
[ERROR] npm ERR! syscall chmod
[ERROR] npm ERR! enoent ENOENT: no such file or directory, chmod '/usr/build/ui-modules/app-inspector/node_modules/d3-dsv/bin/json2dsv'
[ERROR] npm ERR! enoent This is related to npm not being able to find a file.
[ERROR] npm ERR! enoent
[ERROR]
[ERROR] npm ERR! A complete log of this run can be found in:
[ERROR] npm ERR!     /root/.npm/_logs/2018-07-09T17_46_07_187Z-debug.log

This is Docker bug: docker/for-mac#2296.

Try to run the build again from the failed module (but this will not always work). For example:

pushd ui-modules/app-inspector
find ./ -type d -name "node_modules" -exec rm -rf {} \+
popd
mvn clean install -rf :brooklyn-ui-app-inspector

Alternatively, run Docker on a Linux VM (e.g. see instructions at https://docs.docker.com/install/linux/docker-ce/centos/#install-docker-ce).

###
 # Install Docker
 ##
sudo yum install -y yum-utils \
  device-mapper-persistent-data \
  lvm2
sudo yum-config-manager \
    --add-repo \
    https://download.docker.com/linux/centos/docker-ce.repo

sudo yum install docker-ce

# Or if you hit https://github.com/docker/for-linux/issues/20#issuecomment-312760808
#sudo yum install --setopt=obsoletes=0 \
#    docker-ce-17.03.2.ce-1.el7.centos.x86_64 \
#    docker-ce-selinux-17.03.2.ce-1.el7.centos.noarch

sudo systemctl start docker

###
 # Download the Brooklyn UI code
 ##
sudo yum install -y git-core
git clone https://github.com/apache/brooklyn-ui.git
cd brooklyn-ui/

###
 # Build.
 ##
docker build -t brooklyn:ui .
docker run -i --rm --name brooklyn-ui -v ${HOME}/.m2:/root/.m2 -v ${PWD}:/usr/build -w /usr/build brooklyn:ui mvn clean install

Dockerfile Development

The Dockerfile should work for you. The notes below are for if you are trying to tweak the Dockerfile. The dependencies (e.g. make) are to allow npm to build particular modules from source. Without this, it gives an error like:

[ERROR]   ⚠ The `/usr/build/ui-modules/home/node_modules/mozjpeg/vendor/cjpeg` binary doesn't seem to work correctly
[ERROR]   ⚠ mozjpeg pre-build test failed
[ERROR]   ℹ compiling from source
[ERROR]   ✖ Error: autoreconf -fiv && ./configure --disable-shared --prefix="/usr/build/ui-modules/home/node_modules/mozjpeg/vendor" --bindir="/usr/build/ui-modules/home/node_modules/mozjpeg/vendor" --libdir="/usr/build/ui-modules/home/node_modules/mozjpeg/vendor" && make --jobs=4 && make install --jobs=4
[ERROR] Command failed: make --jobs=4
[ERROR] /bin/sh: 1: make: not found

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