Remove postgresql from the conda environment (#246)

* remove postgresql from the conda environment, only psycopg2 is needed for DB access

* use psycopg2 instead of psql to check if DB is up

Author: backmari

conda_environment.yml

@@ -8,7 +8,6 @@ dependencies:
   - gunicorn
   - make
   - oauthlib
-  - postgresql
   - psycopg2-binary=2.9.3
   - psutil
   - python-ldap>=3.1

src/dasmon_app/docker-entrypoint.sh

@@ -2,7 +2,7 @@
 set -e
 
 # wait for postgress to be available
-until PGPASSWORD=${DATABASE_PASS} psql -h "${DATABASE_HOST}" -U "${DATABASE_USER}" -d "${DATABASE_NAME}" -c '\q'; do
+until python -c "import psycopg2; import os; psycopg2.connect(host=os.environ['DATABASE_HOST'], dbname=os.environ['DATABASE_NAME'], user=os.environ['DATABASE_USER'], password=os.environ['DATABASE_PASS']).close()"; do
   >&2 echo "Postgres is unavailable - sleeping"
   sleep 1
 done

src/webmon_app/docker-entrypoint.sh

@@ -4,7 +4,7 @@ set -e
 MANAGE_PY_WEBMON="/opt/conda/lib/python3.11/site-packages/reporting/manage.py"
 
 # wait for postgress to be available
-until PGPASSWORD=${DATABASE_PASS} psql -h "${DATABASE_HOST}" -U "${DATABASE_USER}" -d "${DATABASE_NAME}" -c '\q'; do
+until python -c "import psycopg2; import os; psycopg2.connect(host=os.environ['DATABASE_HOST'], dbname=os.environ['DATABASE_NAME'], user=os.environ['DATABASE_USER'], password=os.environ['DATABASE_PASS']).close()"; do
   >&2 echo "Postgres is unavailable - sleeping"
   sleep 1
 done

src/workflow_app/docker-entrypoint.sh

@@ -2,7 +2,7 @@
 set -e
 
 # wait for postgress to be available
-until PGPASSWORD=${DATABASE_PASS} psql -h "${DATABASE_HOST}" -U "${DATABASE_USER}" -d "${DATABASE_NAME}" -c '\q'; do
+until python -c "import psycopg2; import os; psycopg2.connect(host=os.environ['DATABASE_HOST'], dbname=os.environ['DATABASE_NAME'], user=os.environ['DATABASE_USER'], password=os.environ['DATABASE_PASS']).close()"; do
   >&2 echo "Postgres is unavailable - sleeping"
   sleep 1
 done