fix

.gitlab-ci.yml

@@ -4,6 +4,8 @@ stages:
 
 variables:
   IMAGE_NAME: $CI_REGISTRY/$CI_PROJECT_PATH
+  HUB_IMAGE_NAME: $DOCKER_HUB_LOGIN/$CI_PROJECT_NAME
+
 
 dockerize:
   image: registry.hottis.de/dockerized/docker-bash:latest
@@ -19,6 +21,12 @@ dockerize:
     - 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};
+
+        docker login -u $DOCKER_HUB_LOGIN -p $DOCKER_HUB_PASSWORD;
+        docker tag $IMAGE_NAME:${CI_COMMIT_SHORT_SHA} $HUB_IMAGE_NAME:${CI_COMMIT_TAG};
+        docker tag $IMAGE_NAME:${CI_COMMIT_SHORT_SHA} $HUB_IMAGE_NAME:latest;
+        docker push $HUB_IMAGE_NAME:${CI_COMMIT_TAG};
+        docker push $HUB_IMAGE_NAME:latest;
       fi
 
 .deploy:
@@ -49,9 +57,10 @@ dockerize:
     - docker network connect external-network $CONTAINER_NAME
  
 
-deploy-berresheim:
-  extends: .deploy
-  tags:
-    - berresheim-deployment-only
-  environment:
-    name: berresheim-production
+# deploy-berresheim:
+#   extends: .deploy
+#   tags:
+#     - berresheim-deployment-only
+#   environment:
+#     name: berresheim-production
+#

Dockerfile

@@ -3,7 +3,7 @@ FROM python:3.10-bullseye
 ENV MQTT_LOGIN "-"
 ENV MQTT_PASSWORD "-"
 ENV MQTT_BROKER "-"
-ENV MQTT_PORT "8883"
+ENV MQTT_PORT "1883"
 ENV MQTT_CA ""
 
 ENV PGHOST ""

deployment/install.sh

@@ -0,0 +1,11 @@
+#!/bin/bash
+
+
+NAMESPACE=$(cat namespace)
+~/Workspace/MyKubernetesEnv/tools/create-namespace.sh $NAMESPACE
+
+./roll-db-credential.sh
+
+kubectl -f install.yml -n $NAMESPACE apply
+
+

deployment/install.yml

@@ -0,0 +1,36 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: cemmetering
+data:
+  MQTT_BROKER: "emqx01-anonymous-cluster-internal.broker.svc.cluster.local"
+  MQTT_PORT: "1883"
+  PGDATABASE: "cem_monitoring_berresheim"
+  PGHOST: "timescaledb.database.svc.cluster.local"
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: cemmetering
+  labels:
+    app: cemmetering
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: cemmetering
+  template:
+    metadata:
+      labels:
+        app: cemmetering
+    spec:
+      containers:
+        - name: cemmetering
+          image: wollud1969/cemmetering-preprocessor:1.0.1
+          envFrom:
+            - configMapRef:
+                name: cemmetering
+            - secretRef:
+                name: cemmetering-db-cred
+
+

deployment/namespace

@@ -0,0 +1 @@
+berresheim

deployment/roll-db-credential.sh

@@ -0,0 +1,33 @@
+#!/bin/bash
+
+. ~/Workspace/MyKubernetesEnv/ENVDB
+
+DATABASE=cem_monitoring_berresheim
+LOGIN=cem_preprocessor
+PASSWORD=`openssl rand -base64 24`
+NAMESPACE=`cat namespace`
+
+psql <<EOF
+do
+\$\$
+begin
+  if not exists (SELECT * FROM pg_user WHERE usename = '$LOGIN') then
+    CREATE USER $LOGIN WITH PASSWORD '$PASSWORD';
+  else
+    ALTER USER $LOGIN WITH PASSWORD '$PASSWORD';
+  end if;
+end
+\$\$
+;
+commit;
+EOF
+
+kubectl create secret generic cemmetering-db-cred \
+  --dry-run=client \
+  -o yaml \
+  --save-config \
+  --from-literal=PGUSER="$LOGIN" \
+  --from-literal=PGPASSWORD="$PASSWORD" | \
+kubectl apply -f - -n $NAMESPACE
+
+

schema/create-schema.sql

@@ -1,5 +1,5 @@
 create database cem_monitoring;
--- create extension timescaledb;
+create extension timescaledb;
 
 
 
@@ -17,29 +17,40 @@ create table variable_t (
     variable_id varchar(16) not null,
     label varchar(128) not null unique,
     unit varchar(16),
+    quantity varchar(32),
     unique (app, converter_id, device_id, variable_id)
 );
 
 create table measurement_t (
-    time timestamp without time zone not null,
-    application varchar(128) not null,
-    variable varchar(128) not null,
-    unit varchar(16),
+    time timestamptz not null,
+    variable integer references variable_t (id),
     value float
 );
 
 select create_hypertable('measurement_t', 'time');
 
 insert into application_t (app_id, label) values('ku226', 'Kupferdreher Str. 226, Essen');
-insert into variable_t (app, converter_id, device_id, variable_id, label, unit)
-	values ((select id from application_t where app_id = 'ku226'), '1', 'bhkw', 'u', 'BHKW Spannung', 'V'),
-	       ((select id from application_t where app_id = 'ku226'), '1', 'bhkw', 'p', 'BHKW Leistung', 'W'),
-               ((select id from application_t where app_id = 'ku226'), '1', 'bhkw', 'import', 'BHKW Energie Export', 'Wh'),
-               ((select id from application_t where app_id = 'ku226'), '1', 'bhkw', 'export', 'BHKW Energie Import', 'Wh'),
-               ((select id from application_t where app_id = 'ku226'), '1', 'pv', 'u', 'PV Spannung', 'V'),
-               ((select id from application_t where app_id = 'ku226'), '1', 'pv', 'p', 'PV Leistung', 'W'),
-               ((select id from application_t where app_id = 'ku226'), '1', 'pv', 'import', 'PV Energie Export', 'Wh'),
-               ((select id from application_t where app_id = 'ku226'), '1', 'pv', 'export', 'PV Energie Import', 'Wh')
+insert into variable_t (app, converter_id, device_id, variable_id, label, unit, quantity)
+	values ((select id from application_t where app_id = 'ku226'), '1', 'bhkw', 'u', 'BHKW Spannung', 'V', 'voltage'),
+	       ((select id from application_t where app_id = 'ku226'), '1', 'bhkw', 'p', 'BHKW Leistung', 'kW', 'power'),
+               ((select id from application_t where app_id = 'ku226'), '1', 'bhkw', 'import', 'BHKW Energie Export', 'Wh', 'energy'),
+               ((select id from application_t where app_id = 'ku226'), '1', 'bhkw', 'export', 'BHKW Energie Import', 'Wh', 'energy'),
+               ((select id from application_t where app_id = 'ku226'), '1', 'pv', 'u', 'PV Spannung', 'V', 'voltage'),
+               ((select id from application_t where app_id = 'ku226'), '1', 'pv', 'p', 'PV Leistung', 'kW', 'power'),
+               ((select id from application_t where app_id = 'ku226'), '1', 'pv', 'import', 'PV Energie Export', 'Wh', 'energy'),
+               ((select id from application_t where app_id = 'ku226'), '1', 'pv', 'export', 'PV Energie Import', 'Wh', 'energy'),
+               ((select id from application_t where app_id = 'ku226'), '3', 'mains', 'import', 'Netz Energie Import', 'Wh', 'energy'),
+               ((select id from application_t where app_id = 'ku226'), '3', 'mains', 'p', 'Netz Leistung', 'W', 'power'),
+               ((select id from application_t where app_id = 'ku226'), '1', 'w1', 'p', 'Wohnung 1 Leistung', 'kW', 'power'),
+               ((select id from application_t where app_id = 'ku226'), '1', 'w1', 'import', 'Wohnung 1 Energie Import', 'Wh', 'energy'),
+               ((select id from application_t where app_id = 'ku226'), '1', 'w2', 'p', 'Wohnung 2 Leistung', 'kW', 'power'),
+               ((select id from application_t where app_id = 'ku226'), '1', 'w2', 'import', 'Wohnung 2 Energie Import', 'Wh', 'energy'),
+               ((select id from application_t where app_id = 'ku226'), '1', 'w3', 'p', 'Wohnung 3 Leistung', 'kW', 'power'),
+               ((select id from application_t where app_id = 'ku226'), '1', 'w3', 'import', 'Wohnung 3 Energie Import', 'Wh', 'energy'),
+               ((select id from application_t where app_id = 'ku226'), '1', 'w4', 'p', 'Wohnung 4 Leistung', 'kW', 'power'),
+               ((select id from application_t where app_id = 'ku226'), '1', 'w4', 'import', 'Wohnung 4 Energie Import', 'Wh', 'energy'),
+               ((select id from application_t where app_id = 'ku226'), '1', 'w5', 'p', 'Wohnung 5 Leistung', 'kW', 'power'),
+               ((select id from application_t where app_id = 'ku226'), '1', 'w5', 'import', 'Wohnung 5 Energie Import', 'Wh', 'energy')
 	;
 
 
@@ -49,4 +60,22 @@ insert into variable_t (app, converter_id, device_id, variable_id, label, unit)
 grant select on application_t to preprocessor;
 grant select on variable_t to preprocessor;
 grant insert on measurement_t to preprocessor;
+grant select on measurement_t to grafana;
+
+
+create view measurement_v as
+  select m.time as time, 
+         m.value as value, 
+	 v.quantity as quantity, 
+	 v.unit as unit, 
+	 v.label as variable, 
+	 a.label as application 
+    from measurement_t m, 
+         application_t a, 
+	 variable_t v 
+    where m.variable = v.id and 
+          v.app = a.id;
+
+grant select on measurement_v to grafana;
+
 

src/preprocess.py

@@ -29,7 +29,7 @@ class JustIgnoreMessage (Exception):
         self.message = message
 
 class DbOp(object):
-    def __init__(self, config):
+    def __init__(self):
         self.conn = None
 
     def __getConn(self):
@@ -46,7 +46,9 @@ class DbOp(object):
                                 select 
                                    a.label as application,
                                    v.label as variable,
-                                   v.unit as unit
+                                   v.quantity as quantity,
+                                   v.unit as unit,
+                                   v.id as vid
                                  from application_t a, variable_t v
                                  where a.app_id = %(appId)s and
                                        v.app = a.id and
@@ -60,7 +62,9 @@ class DbOp(object):
                     variable = {
                         'application': res[0],
                         'variable': res[1],
-                        'unit': res[2]
+                        'quantity': res[2],
+                        'unit': res[3],
+                        'vid': res[4]
                     }
                 logger.debug(f"{variable=}")
             return variable
@@ -78,14 +82,12 @@ class DbOp(object):
             with conn:
                 with conn.cursor() as cur:
                     cur.execute("""
-                        insert into measurement_t (time, application, variable, value, unit) 
-                            values (now(), %(application)s, %(variable)s, %(value)s, %(unit)s)
+                        insert into measurement_t (time, variable, value) 
+                            values (now(), %(vid)s, %(value)s)
                         """,
                         { 
-                            'application': measurement['application'], 
-                            'variable': measurement['variable'],
+                            'vid': measurement['vid'],
                             'value': measurement['value'],
-                            'unit': measurement['unit']
                         }
                     )
         except Exception as e:
@@ -123,12 +125,10 @@ def mqttOnMessageCallback(client, userdata, message):
         
         (appId, converterId, deviceId, variableId) = splitTopic(topic)
 
-        dbh = DbOp(config)
+        dbh = DbOp()
         variable = dbh.getVariable(appId, converterId, deviceId, variableId)
         measurement = {
-            "application": variable["application"],
-            "variable": variable["variable"],
-            "unit": variable["unit"],
+            "vid": variable["vid"],
             "value": float(payload)
         }
         
@@ -150,21 +150,6 @@ logger.info("preprocess starting")
 
 
 
-REQUIRED_CONFIG_OPTIONS = [ 
-    'MQTT_LOGIN',
-    'MQTT_PASSWORD',
-    'MQTT_BROKER',
-    'MQTT_PORT',
-    'MQTT_CA'
-]
-
-config = {}
-for rco in REQUIRED_CONFIG_OPTIONS:
-    try:
-        config[rco] = os.environ[rco]
-    except KeyError:
-        logger.error(f"{rco} is a required config option, not available in environment")
-        sys.exit(-1)
 
 
 
@@ -172,12 +157,7 @@ client = mqtt.Client()
 client.on_message = mqttOnMessageCallback
 client.on_connect = mqttOnConnectCallback
 client.on_disconnect = mqttOnDisconnectCallback
-client.username_pw_set(config['MQTT_LOGIN'], config['MQTT_PASSWORD'])
-client.tls_set(
-    cert_reqs=ssl.CERT_REQUIRED,
-    ciphers=None
-)
-client.connect(config["MQTT_BROKER"], int(config["MQTT_PORT"]))
+client.connect(os.environ["MQTT_BROKER"], int(os.environ["MQTT_PORT"]))
 #client.connect('172.16.2.16', 1883)
 logger.info("mqtt loop starting")
 client.loop_forever()