#Installing Taiga on CentOS 6 (x64)

##Dependencies
...

    yum update -y
    yum groupinstall "Development Tools" -y
    yum install libxslt-devel libxml2-devel libXt-devel curl git tmux -y

##Installing PostgreSQL
...

    TAIGA_POSTGRES_BD = taiga
    TAIGA_POSTGRES_USER = taiga
    TAIGA_POSTGRES_PASSWORD=`< /dev/urandom tr -dc _A-Z-a-z-0-9 | head -c${1:-20};echo;`
...

    rpm -ivh http://yum.postgresql.org/9.4/redhat/rhel-6-x86_64/pgdg-centos94-9.4-1.noarch.rpm
    sed -i 's/^gpgkey.*/&\nexclude=postgresql*/' /etc/yum.repos.d/CentOS-Base.repo

    yum -y install postgresql94 postgresql94-contrib postgresql94-server postgresql94-devel postgresql94-libs
    service postgresql-9.4 initdb
...

    sed -i "/^host/s/ident/md5/g" /var/lib/pgsql/9.4/data/pg_hba.conf
...

    /sbin/chkconfig --level 35 postgresql-9.4 on
    service postgresql-9.4 start
...

    echo -e "$TAIGA_POSTGRES_PASSWORD\n$TAIGA_POSTGRES_PASSWORD\n" | su - postgres -c "createuser --pwprompt $TAIGA_POSTGRES_USER"
    su - postgres -c "createdb $TAIGA_POSTGRES_BD -O $TAIGA_POSTGRES_USER"

##Installing Python
...

    wget --directory-prefix=/tmp http://repo.continuum.io/miniconda/Miniconda3-3.7.0-Linux-x86_64.sh
    bash /tmp/Miniconda3-3.7.0-Linux-x86_64.sh -b -p /usr/local/miniconda3

...

    cat > /etc/profile.d/miniconda.sh << EOF
    if [[ \$PATH != */usr/local/miniconda3/bin* ]]
    then
        export PATH=/usr/local/miniconda3/bin:\$PATH
    fi
    EOF

...

    source /etc/profile.d/miniconda.sh

##Installing Taiga Backend
...

    TAIGA_SECRET_KEY=`< /dev/urandom tr -dc _A-Z-a-z-0-9 | head -c${1:-20};echo;`

    adduser taiga

    DIR="/var/log/taiga /opt/taiga-back /opt/taiga-events"
    for NAME in $DIR
    do
    if [ ! -d $NAME ]; then
       mkdir $NAME
       chown taiga.taiga $NAME
    fi
    done

...

    su - taiga
    git clone https://github.com/taigaio/taiga-back.git /opt/taiga-back
    cd /opt/taiga-back
    git checkout stable

Create environment...

    conda create --yes -n taiga python
    source activate taiga
    conda install --yes pip

Installing taiga.io requirements...

    export PATH=$PATH:/usr/pgsql-9.4/bin/
    pip install -r requirements.txt
    exit

Configure backend...

    cat > /opt/taiga-back/settings/local.py << EOF
    from .development import *

    DATABASES = {
        'default': {
            'ENGINE': 'transaction_hooks.backends.postgresql_psycopg2',
            'NAME': '$TAIGA_POSTGRES_BD',
            'USER': '$TAIGA_POSTGRES_USER',
            'PASSWORD': '$TAIGA_POSTGRES_PASSWORD'
        }
    }

    MEDIA_URL = "http://example.com/media/"
    STATIC_URL = "http://example.com/static/"
    ADMIN_MEDIA_PREFIX = "http://example.com/static/admin/"
    SITES["front"]["scheme"] = "http"
    SITES["front"]["domain"] = "example.com"

    SECRET_KEY = "$TAIGA_SECRET_KEY"

    DEBUG = False
    TEMPLATE_DEBUG = False

    PUBLIC_REGISTER_ENABLED = True

    DEFAULT_FROM_EMAIL = "no-reply@example.com"
    SERVER_EMAIL = DEFAULT_FROM_EMAIL
    EOF

...

    chown taiga.taiga /opt/taiga-back/settings/local.py

Populate the database with initial data...

    su - taiga
    source activate taiga
    cd /opt/taiga-back
    python manage.py migrate --noinput
    python manage.py loaddata initial_user
    python manage.py loaddata initial_project_templates
    python manage.py loaddata initial_role
    python manage.py collectstatic --noinput
    exit

This creates a new user "admin" with password "123123".

##Circus and gunicorn
...

    conda install --yes pip
    pip install circus

You can check environment path with this command:
    
    su - taiga -c "conda info -e"

Output will be something like this:

    # conda environments:
    #
    taiga                    /home/taiga/envs/taiga
    root                  *  /usr/local/miniconda3

...

    cat > /etc/circus.ini << EOF
    [circus]
    check_delay = 5
    endpoint = tcp://127.0.0.1:5555
    pubsub_endpoint = tcp://127.0.0.1:5556
    statsd = true

    [watcher:taiga]
    working_dir = /opt/taiga-back
    cmd = gunicorn
    args = -w 3 -t 60 --pythonpath=. -b 127.0.0.1:8001 taiga.wsgi
    uid = taiga
    numprocesses = 1
    autostart = true
    send_hup = true
    stdout_stream.class = FileStream
    stdout_stream.filename = /var/log/taiga/gunicorn.stdout.log
    stdout_stream.max_bytes = 10485760
    stdout_stream.backup_count = 4
    stderr_stream.class = FileStream
    stderr_stream.filename = /var/log/taiga/gunicorn.stderr.log
    stderr_stream.max_bytes = 10485760
    stderr_stream.backup_count = 4

    [env:taiga]
    PATH = \$PATH:/home/taiga/envs/taiga/bin
    TERM=rxvt-256color
    SHELL=/bin/bash
    USER=taiga
    LANG=en_US.UTF-8
    HOME=/home/taiga
    PYTHONPATH=/home/taiga/envs/taiga/lib/python3.4/site-packages
    EOF

...

    cat > /etc/init/circus.conf << EOF
    start on runlevel [2345]
    stop on runlevel [016]

    respawn
    exec /usr/local/miniconda3/bin/circusd /etc/circus.ini
    EOF

Start the circus service.

    initctl start circus

Backend installation complete.