Micro Installer

An auto-installer of micro as a service in systemd systems.

Installation Instructions

There are two approaches to install:

1. Install pre-compiled micro binary (straight forward approach)

   Notes:

   1. Most services can safely use this approach.
   2. This is not guaranteed to use the latest version of micro as it uses a precompiled binary.
   3. The installer installs micro web and micro api, if your service requires other micro products then it's best to use the build and install approach - this gives you more options.

2. Build and install the latest release of the micro binary (you will need to have the go compiler installed to achieve this approach)

Install Precompiled micro binary

Prerequisite

To run the build, you need make installed, easiest way to install this is:

sudo apt install build-essential

Procedure

1. Clone the repository and cd into it

   git clone https://github.com/tomogoma/micro-installer
   cd micro-installer
   

2. Install micro together with the respective unit files:

   sudo make install
   

   This installs the web and api commands. See the Install outcome section for next steps.

Build and install the latest release of micro

Prerequisites

To run the build, you need:

1. make installed, easiest way to install this is:

   sudo apt install build-essential
   

2. a fully set up go runtime and working GOPATH. Instructions here: https://golang.org/doc/install

   This is because the build scripts use go get to fetch the micro repository, checkout the latest release branch and build an executable to be installed. SystemD unit files are also created for the micro commands provided during build.

Procedure

1. Clone the repository and cd into it

   git clone https://github.com/tomogoma/micro-installer
   cd micro-installer
   

2. Build the installer. Build the installer with the micro commands you wish to have unit files for e.g. to build for micro api and micro web run:

   make build commands="api web"
   

   A micro executable is created at bin/micro while the respective unit files are created inside the unit directory
3. Install the build outcome:

   sudo make install
   

   This installs the commands provided during the build step. See the Install outcome section for next steps.

Install outcome

Start

systemctl start micro[command].service e.g. systemctl start microapi.service

Stop

systemctl stop micro[command].service

Check status

systemctl status micro[command].service

Install Directories

The micro binary is installed into /usr/local/bin/micro

Systemd service unit files are created at /etc/systemd/system/micro[command].service

Configuring

the command micro --help or micro [command] --help provides all configuration options applicable.

To change config values for a command e.g. change listening address, append the relevant environment variable to /etc/systemd/system/micro[command].service e.g.

[Service]
Environment=MICRO_API_ADDRESS=0.0.0.0:8089 "ANOTHER_ENV_VAR=some value"
...

Once done, perform a daemon reload for changes to take effect:

systemctl daemon-reload

Uninstall

cd /path/to/micro-installer

sudo make uninstall