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RPM Spec for Consul

Tries to follow the packaging guidelines from Fedora.

  • Binary: /usr/bin/consul
  • Config: /etc/consul.d/
  • Shared state: /var/lib/consul/
  • Sysconfig: /etc/sysconfig/consul
  • WebUI: /usr/share/consul/

Using

Create the RPMs using one of the techniques outlined in the Build section below.

Pre-built packages

Pre-built packages are maintained via the Fedora Copr system. For more information, please see the duritong/consul repository on Copr.

Build

There are a number of ways to build the consul and consul-ui RPMs:

  • Manual
  • Vagrant
  • Docker

Each method ultimately does the same thing - pick the one that is most comfortable for you.

Version

The version number is hardcoded into the SPEC, however should you so choose, it can be set explicitly by passing an argument to rpmbuild directly:

$ rpmbuild --define "_version 0.6.3"

Manual

Build the RPM as a non-root user from your home directory:

  • Check out this repo. Seriously - check it out. Nice.

    git clone <this_repo_url>

  • Install rpmdevtools and mock.

    sudo yum install rpmdevtools mock

  • Set up your rpmbuild directory tree.

    rpmdev-setuptree

  • Link the spec file and sources.

    ln -s $HOME/consul-rpm/SPECS/consul.spec $HOME/rpmbuild/SPECS/
find $HOME/consul-rpm/SOURCES -type f -exec ln -s {} $HOME/rpmbuild/SOURCES/ \;

  • Download remote source files.

    spectool -g -R rpmbuild/SPECS/consul.spec

  • Spectool may fail if your distribution has an older version of cURL (CentOS 6.x, for example) - if so, use Wget instead.

    VER=`grep Version rpmbuild/SPECS/consul.spec | awk '{print $2}'`
URL='https://dl.bintray.com/mitchellh/consul'
wget $URL/consul_${VER}_linux_amd64.zip -O $HOME/rpmbuild/SOURCES/consul_${VER}_linux_amd64.zip
wget $URL/consul_${VER}_web_ui.zip -O $HOME/rpmbuild/SOURCES/consul_${VER}_web_ui.zip

  • Build the RPM.

    rpmbuild -ba rpmbuild/SPECS/consul.spec

Vagrant

If you have Vagrant installed:

  • Check out this repo.

    git clone https://github.com/tomhillable/consul-rpm

  • Edit Vagrantfile to point to your favourite box (Bento CentOS7 in this example).

    config.vm.box = "http://opscode-vm-bento.s3.amazonaws.com/vagrant/virtualbox/opscode_centos-7.0_chef-provisionerless.box"

  • Vagrant up! The RPMs will be copied to working directory after provisioning.

    vagrant up

Docker

If you prefer building it with Docker:

  • Build the Docker image. Note that you must amend the Dockerfile header if you want a specific OS build (default is centos7).

    docker build -t consul:build .

  • Run the build.

    docker run -v $HOME/consul-rpms:/RPMS consul:build

  • Retrieve the built RPMs from $HOME/consul-rpms.

Result

Three RPMs:

  • consul server
  • consul web UI
  • consul-template

Run

  • Install the RPM.
  • Put config files in /etc/consul.d/.
  • Change command line arguments to consul in /etc/sysconfig/consul.
    • Add -bootstrap only if this is the first server and instance.
  • Start the service and tail the logs systemctl start consul.service and journalctl -f.
    • To enable at reboot systemctl enable consul.service.
  • Consul may complain about the GOMAXPROCS setting. This is safe to ignore; however, the warning can be supressed by uncommenting the appropriate line in /etc/sysconfig/consul.

Config

Config files are loaded in lexicographical order from the config-dir. Some sample configs are provided.

More info

See the consul.io website.

Backwards compatibility

Earlier verisons of this package used /etc/consul/ as the default configuration directory. As of 0.7.2, the default directory was changed to /etc/consul.d/ in order to align with the offcial Consul docuemntation. In order to avoid breaking existing installations during upgrade, both of the directories will be created during package install.