add ci/cd

.gitlab-ci.yml

@@ -0,0 +1,53 @@
+stages:
+  - dockerize
+  - deploy
+
+variables:
+  IMAGE_NAME: $CI_REGISTRY/$CI_PROJECT_PATH
+
+dockerize:
+  image: registry.hottis.de/dockerized/docker-bash:latest
+  stage: build
+  tags:
+    - hottis
+    - linux
+    - docker
+  script:
+    - docker build --tag $IMAGE_NAME:${CI_COMMIT_SHORT_SHA} .
+    - docker login -u gitlab-ci-token -p $CI_JOB_TOKEN $CI_REGISTRY;
+    - docker push $IMAGE_NAME:${CI_COMMIT_SHORT_SHA}
+    - if [ "$CI_COMMIT_TAG" != "" ]; then
+        docker tag $IMAGE_NAME:${CI_COMMIT_SHORT_SHA} $IMAGE_NAME:${CI_COMMIT_TAG};
+        docker push $IMAGE_NAME:${CI_COMMIT_TAG};
+      fi
+
+deploy:
+  image: registry.hottis.de/dockerized/docker-bash:latest
+  stage: deploy
+  tags:
+    - saerbeck-deployment-only
+  only:
+    - tags
+  variables:
+    GIT_STRATEGY: none
+    CONTAINER_NAME: preprocessor
+  script:
+    - docker stop $CONTAINER_NAME || echo "container not running, never mind"
+    - docker rm $CONTAINER_NAME || echo "container not existing, never mind"
+    - docker run 
+      -d
+      --name $CONTAINER_NAME
+      --restart always
+      --link timescaledb-server
+      -e "APPLICATION_TENANT=$APPLICATION_TENANT"
+      -e "MQTT_LOGIN=$MQTT_LOGIN"
+      -e "MQTT_PASSWORD=$MQTT_PASSWORD"
+      -e "MQTT_BROKER=$MQTT_BROKER"
+      -e "PGHOST=timescaledb-server"
+      -e "PGUSER=$PGUSER"
+      -e "PGPASSWORD=$PGPASSWORD"
+      -e "PGDATABASE=$PGDATABASE"
+      $IMAGE_NAME:$CI_COMMIT_TAG
+  environment:
+    name: production
+    

Dockerfile

@@ -0,0 +1,36 @@
+FROM python:3.10-bullseye
+
+ENV APPLICATION_TENANT "-"
+
+ENV MQTT_LOGIN "-"
+ENV MQTT_PASSWORD "-"
+ENV MQTT_BROKER "-"
+ENV MQTT_PORT "8883"
+ENV MQTT_CA ""
+
+ENV PGHOST ""
+ENV PGPORT "5432"
+ENV PGUSER "-"
+ENV PGSSLMODE "disable"
+ENV PGDATABASE "-"
+
+ARG APP_DIR="/opt/app"
+
+RUN \
+    apt update && \
+    apt upgrade -y && \
+    apt install -y libpq-dev && \
+    mkdir -p ${APP_DIR}
+
+COPY src/requirements.txt ${APP_DIR}/
+COPY src/preprocess.py ${APP_DIR}/
+
+WORKDIR ${APP_DIR}
+
+RUN \
+    pip install -r requirements.txt
+
+USER nobody
+
+CMD [ "python", "preprocess.py" ]
+

src/preprocess.py

@@ -22,14 +22,10 @@ class UnknownSensorException (Exception):
 
 class DbOp(object):
     def __init__(self, config):
-        self.db_name = config['DB_NAME']
         self.conn = None
 
     def __getConn(self):
-        conn = psycopg2.connect(
-            database = self.db_name,
-            sslmode = 'require'
-        )
+        conn = psycopg2.connect()
         conn.autocommit = False
         return conn
 
@@ -188,8 +184,7 @@ REQUIRED_CONFIG_OPTIONS = [
     'MQTT_BROKER',
     'MQTT_PORT',
     'MQTT_CA',
-    'APPLICATION_TENANT',
-    'DB_NAME'
+    'APPLICATION_TENANT'
 ]
 
 config = {}