Instantly share code, notes, and snippets.

Embed
What would you like to do?
Install Airflow on a new Ubuntu server 18.04
#!/bin/bash
USUARIO_SO="$(whoami)"
ANACONDA_URL="https://repo.anaconda.com/archive/Anaconda3-5.2.0-Linux-x86_64.sh"
_DB_PASSWORD="la contraseña"
_IP=$(hostname -I | cut -d' ' -f1)
while getopts "a:p:h" opt; do
case $opt in
a) ANACONDA_URL="$OPTARG";;
p) _DB_PASSWORD="$OPTARG";;
h) cat <<EOF
All arguments are optional
-a anaconda url
-p password for airflow postgres user
-h this help
EOF
exit 0;
;;
\?) echo "Invalid option -$OPTARG" >&2
;;
esac
done
echo "Installation will be performed as $USUARIO_SO"
if [[ $(id -u) -eq 0 ]] ; then echo "This script must not be excecuted as root or using sudo(althougth the user must be sudoer and password will be asked in some steps)" ; exit 1 ; fi
#Prerequisites installation:
while sudo fuser /var/{lib/{dpkg,apt/lists},cache/apt/archives}/lock >/dev/null 2>&1; do
echo "Waiting while other process ends installs (dpkg/lock is locked)"
sleep 1
done
sudo apt update && sudo apt upgrade -y
sudo apt install -y openssh-server git wget htop postgresql postgresql-client postgresql-contrib
if ! hash conda &> /dev/null; then
mkdir -p ~/instaladores && wget -c -P "$HOME/instaladores" "$ANACONDA_URL"
bash "$HOME/instaladores/${ANACONDA_URL##*/}" -b -p "$HOME/anaconda2"
export PATH="$HOME/anaconda2/bin:$PATH"
echo "export PATH='$HOME/anaconda2/bin:$PATH'">>"$HOME/.bashrc"
fi
conda install -y psycopg2
conda install -y -c conda-forge airflow "celery<4"
if [[ -z "${AIRFLOW_HOME}" ]]; then
export AIRFLOW_HOME="$HOME/airflow"
echo "export AIRFLOW_HOME='$HOME/airflow'" >>"$HOME/.bashrc"
fi
airflow initdb
sudo -u postgres createdb airflow
sudo -u postgres createuser airflow
sudo -u postgres psql airflow -c "alter user airflow with encrypted password '$_DB_PASSWORD';"
sudo -u postgres psql airflow -c "grant all privileges on database airflow to airflow;"
#Configurar postgresql para que admita conexiones remotas
_HBA=$(sudo -u postgres psql -t -P format=unaligned -c 'show hba_file')
_CONFIG=$(sudo -u postgres psql -t -P format=unaligned -c 'show config_file')
mkdir -p "$HOME/pg_backup"
sudo cp "$_HBA" "$HOME/pg_backup"
cp "$_CONFIG" "$HOME/pg_backup"
sudo su -c "echo 'host all all 0.0.0.0/0 md5' >>$_HBA"
sudo sed -i "s/#listen_addresses = 'localhost'/listen_addresses = '*'/" "$_CONFIG"
sudo systemctl restart postgresql.service
sed -i "s%sql_alchemy_conn.*%sql_alchemy_conn = postgresql+psycopg2://airflow:$_DB_PASSWORD@$_IP:5432/airflow%" "$AIRFLOW_HOME/airflow.cfg"
sed -i "s%executor =.*%executor = LocalExecutor%" "$AIRFLOW_HOME/airflow.cfg"
mkdir -p "$AIRFLOW_HOME/dags"
cat <<EOF >"$AIRFLOW_HOME/dags/dummy.py"
import airflow
from airflow.models import DAG
from airflow.operators.dummy_operator import DummyOperator
from datetime import timedelta
args = {
'owner': 'airflow',
'start_date': airflow.utils.dates.days_ago(2)
}
dag = DAG(
dag_id='example_dummy', default_args=args,
schedule_interval=None,
dagrun_timeout=timedelta(minutes=1))
run_this_last = DummyOperator(task_id='DOES_NOTHING', dag=dag)
EOF
airflow initdb
airflow scheduler -D
airflow webserver -p 8080 -D
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment