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Install from source code and configure

This section describes how to install and configure the Container Infrastructure Management service for from source code.

Install and configure components

Install Magnum from source:

Install OS-specific prerequisites:

Ubuntu 16.04 (xenial) or higher:

# apt update
# apt install python-dev libssl-dev libxml2-dev \
              libmysqlclient-dev libxslt-dev libpq-dev git \
              libffi-dev gettext build-essential

CentOS 7:

# yum install python-devel openssl-devel mariadb-devel \
              libxml2-devel libxslt-devel postgresql-devel git \
              libffi-devel gettext gcc

Fedora 21 / RHEL 7

# yum install python-devel openssl-devel mysql-devel \
              libxml2-devel libxslt-devel postgresql-devel git \
              libffi-devel gettext gcc

Fedora 22 or higher

# dnf install python-devel openssl-devel mysql-devel \
              libxml2-devel libxslt-devel postgresql-devel git \
              libffi-devel gettext gcc

openSUSE Leap 42.1

# zypper install git libffi-devel libmysqlclient-devel \
                 libopenssl-devel libxml2-devel libxslt-devel \
                 postgresql-devel python-devel gettext-runtime gcc

Create magnum user and necessary directories:

Create user:

# groupadd --system magnum
# useradd --home-dir "/var/lib/magnum" \
      --create-home \
      --system \
      --shell /bin/false \
      -g magnum \
      magnum

Create directories:

# mkdir -p /var/log/magnum
# mkdir -p /etc/magnum

Set ownership to directories:

# chown magnum:magnum /var/log/magnum
# chown magnum:magnum /var/lib/magnum
# chown magnum:magnum /etc/magnum

Install virtualenv and python prerequisites:

Install virtualenv and create one for magnum's installation:

# easy_install -U virtualenv
# su -s /bin/sh -c "virtualenv /var/lib/magnum/env" magnum

Install python prerequisites:

# su -s /bin/sh -c "/var/lib/magnum/env/bin/pip install tox pymysql \
  python-memcached" magnum

Clone and install magnum:

# cd /var/lib/magnum
# git clone https://opendev.org/openstack/magnum
# chown -R magnum:magnum magnum
# cd magnum
# su -s /bin/sh -c "/var/lib/magnum/env/bin/pip install -r requirements.txt" magnum
# su -s /bin/sh -c "/var/lib/magnum/env/bin/python setup.py install" magnum

Copy api-paste.ini:

# su -s /bin/sh -c "cp etc/magnum/api-paste.ini /etc/magnum" magnum

Generate a sample configuration file:

# su -s /bin/sh -c "/var/lib/magnum/env/bin/tox -e genconfig" magnum
# su -s /bin/sh -c "cp etc/magnum/magnum.conf.sample /etc/magnum/magnum.conf" magnum

Optionally, if you want to customize the policies for Magnum API accesses, you can generate a sample policy file, put it into /etc/magnum folder for further modifications:
```
# su -s /bin/sh -c "/var/lib/magnum/env/bin/tox -e genpolicy" magnum
# su -s /bin/sh -c "cp etc/magnum/policy.yaml.sample /etc/magnum/policy.yaml" magnum
```

Additionally, edit the /etc/magnum/magnum.conf file:
- In the [oslo_concurrency] section, configure the lock_path:
```
[oslo_concurrency]
...
lock_path = /var/lib/magnum/tmp
```
- If you decide to customize Magnum policies in 1.e, then in the [oslo_policy] section, configure the policy_file:
```
[oslo_policy]
...
policy_file = /etc/magnum/policy.yaml
```
Note

Make sure that /etc/magnum/magnum.conf still have the correct permissions. You can set the permissions again with:

# chown magnum:magnum /etc/magnum/magnum.conf

Populate Magnum database:

# su -s /bin/sh -c "/var/lib/magnum/env/bin/magnum-db-manage upgrade" magnum

Set magnum for log rotation:

# cd /var/lib/magnum/magnum
# cp doc/examples/etc/logrotate.d/magnum.logrotate /etc/logrotate.d/magnum

Finalize installation

Create init scripts and services:

Ubuntu 16.04 or higher, Fedora 21 or higher/RHEL 7/CentOS 7 or openSUSE Leap 42.1:

# cd /var/lib/magnum/magnum
# cp doc/examples/etc/systemd/system/magnum-api.service \
  /etc/systemd/system/magnum-api.service
# cp doc/examples/etc/systemd/system/magnum-conductor.service \
  /etc/systemd/system/magnum-conductor.service

Start magnum-api and magnum-conductor:

Ubuntu 16.04 or higher, Fedora 21 or higher/RHEL 7/CentOS 7 or openSUSE Leap 42.1:

# systemctl enable magnum-api
# systemctl enable magnum-conductor

# systemctl start magnum-api
# systemctl start magnum-conductor

Verify that magnum-api and magnum-conductor services are running:
- Ubuntu 16.04 or higher, Fedora 21 or higher/RHEL 7/CentOS 7 or openSUSE Leap 42.1:
```
# systemctl status magnum-api
# systemctl status magnum-conductor
```

Install the command-line client

Install OS-specific prerequisites:

Fedora 21/RHEL 7/CentOS 7

# yum install python-devel openssl-devel python-virtualenv \
              libffi-devel git gcc