....Docker and configmap changes

docker/code-server.yaml → docker/code-server/compose.yaml

@@ -10,7 +10,7 @@ services:
       - SUDO_PASSWORD=password #optional
       - DEFAULT_WORKSPACE=/config/workspace #optional
     volumes:
-      - $HOME/.config/vscode/config:/home/coder/config
+      - /home/sysadm/.config/vscode/config:/home/coder/config
       - /home/sysadm/monitoring:/config/workspace/monitoring
     ports:
       - 8443:8443

docker/monitoring/README.md

@@ -0,0 +1,85 @@
+## Compose sample
+
+### Prometheus & Grafana
+
+Project structure:
+
+```
+.
+├── compose.yaml
+├── grafana
+│   └── grafana-config.yaml
+├── prometheus
+│   └── prometheus-config.yaml
+└── README.md
+```
+
+[_compose.yaml_](docker-compose.yaml)
+
+```
+services:
+  prometheus:
+    image: prom/prometheus
+    ...
+    ports:
+      - 9090:9090
+  grafana:
+    image: grafana/grafana
+    ...
+    ports:
+      - 3000:3000
+```
+
+Copy the `monitoring` directory over to your Docker host with secure copy like so:
+
+```bash
+ scp -r home-ops/docker/monitoring sysadm@<docker-host>:/home/sysadm/monitoring
+```
+
+Then use the directory path on the host to map your config files as example:
+
+```yaml
+volumes:
+  - /home/sysadm/monitoring/prometheus:/etc/prometheus
+```
+
+The compose file defines a stack with two services `prometheus` and `grafana`.
+
+When deploying the stack, docker compose maps port the default ports for each service to the equivalent ports on the host in order to inspect easier the web interface of each service.
+Make sure the ports 9090 and 3000 on the host are not already in use.
+
+## Deploy with docker compose
+
+```
+$ docker compose up -d
+Creating network "prometheus-grafana_default" with the default driver
+Creating volume "prometheus-grafana_prom_data" with default driver
+...
+Creating grafana    ... done
+Creating prometheus ... done
+Attaching to prometheus, grafana
+
+```
+
+## Expected result
+
+Listing containers must show two containers running and the port mapping as below:
+
+```
+$ docker ps
+CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                    NAMES
+dbdec637814f        prom/prometheus     "/bin/prometheus --c…"   8 minutes ago       Up 8 minutes        0.0.0.0:9090->9090/tcp   prometheus
+79f667cb7dc2        grafana/grafana     "/run.sh"                8 minutes ago       Up 8 minutes        0.0.0.0:3000->3000/tcp   grafana
+```
+
+Navigate to `http://localhost:3000` in your web browser and use the login credentials specified in the compose file to access Grafana. It is already configured with prometheus as the default datasource.
+
+![page](output.jpg)
+
+Navigate to `http://localhost:9090` in your web browser to access directly the web interface of prometheus.
+
+Stop and remove the containers. Use `-v` to remove the volumes if looking to erase all data.
+
+```
+docker compose down -v
+```

docker/monitoring.yaml → docker/monitoring/compose.yaml

@@ -6,20 +6,22 @@ services:
       - "--config.file=/etc/prometheus/prometheus.yaml"
     ports:
       - 9090:9090
-    restart: unless-stopped
+    restart: always
     volumes:
       - /home/sysadm/monitoring/prometheus:/etc/prometheus
       - prom_data:/prometheus
+
   grafana:
     image: grafana/grafana
     container_name: grafana
     ports:
       - 3000:3000
-    restart: unless-stopped
+    restart: always
     environment:
       - GF_SECURITY_ADMIN_USER=admin
       - GF_SECURITY_ADMIN_PASSWORD=grafana
     volumes:
-      - ./home/sysadm/monitoring/grafana:/etc/grafana/provisioning/datasources
+      - /home/sysadm/monitoring/grafana:/etc/grafana/provisioning/datasources
+
 volumes:
   prom_data:

docker/monitoring/grafana/grafana-config.yaml

@@ -0,0 +1,9 @@
+apiVersion: 1
+
+datasources:
+  - name: Prometheus
+    type: prometheus
+    url: http://prometheus:9090
+    isDefault: true
+    access: proxy
+    editable: true

docker/monitoring/prometheus/prometheus-config.yaml

@@ -0,0 +1,8 @@
+global:
+  scrape_interval: 15s
+  evaluation_interval: 15s
+
+scrape_configs:
+  - job_name: "prometheus"
+    static_configs:
+      - targets: ["localhost:9090", "192.168.7.70:9100"]

docker/postgres.yaml → docker/postgres/compose.yaml

@@ -1,3 +1,5 @@
+version: "3.8"
+
 services:
   postgres:
     container_name: postgres
@@ -27,6 +29,17 @@ services:
     volumes:
       - pgadmin_data:/var/lib/pgadmin
 
+  postgres-exporter:
+    container_name: postgres-exporter
+    image: quay.io/prometheuscommunity/postgres-exporter
+    environment:
+      DATA_SOURCE_URI: "postgres://postgres:password@postgres:5432/postgres?sslmode=disable"
+      DATA_SOURCE_USER: postgres
+      DATA_SOURCE_PASS: password
+    depends_on:
+      - postgres
+      - pgadmin
+
 volumes:
   postgres_data:
   pgadmin_data:

docker/redis/README.md

@@ -0,0 +1,21 @@
+# Run Redis Stack on Docker
+
+How to install Redis Stack using Docker
+
+To get started with Redis Stack using Docker, you first need to select a Docker image:
+
+- `redis/redis-stack` contains both Redis Stack server and Redis Insight. This container is best for local development because you can use the embedded Redis Insight to visualize your data.
+
+- `redis/redis-stack-server` provides Redis Stack server only. This container is best for production deployment.
+
+## Getting started
+
+**redis/redis-stack**
+
+To start a Redis Stack container using the redis-stack image, run the following command in your terminal:
+
+[_compose.yaml_](compose.yaml)
+
+The docker run command above also exposes Redis Insight on port `8001`. You can use Redis Insight by pointing your browser to `localhost:8001`.
+
+[https://redis.io/docs/latest/operate/oss_and_stack/install/install-stack/docker/](https://redis.io/docs/latest/operate/oss_and_stack/install/install-stack/docker/)

docker/redis/compose.yaml

@@ -0,0 +1,15 @@
+version: '3.8'
+
+services:
+  redis-stack:
+    image: redis/redis-stack:latest
+    container_name: redis-stack
+    ports:
+      - '6379:6379'
+      - '8001:8001'
+    volumes:
+      - redis_data:/data
+
+volumes:
+  redis_data:
+    driver: local

kubernetes/apps/homepage-dashboard/config-map.yaml

@@ -148,6 +148,12 @@ data:
           description: PGAdmin for Postgres
           target: _blank
 
+      - Redis:
+          icon: redis.svg
+          href: http://192.168.7.70:8001
+          description: Open-source monitoring system
+          target: _blank
+          
       - Code Server:
           icon: code.png
           href: http://192.168.7.70:8443
@@ -166,6 +172,7 @@ data:
           description: Open-source monitoring system
           target: _blank
 
+
     - Network:
 
       - PiHole 1:

kubernetes/apps/redis-db/deployment.yaml

@@ -16,9 +16,10 @@ spec:
     spec:
       containers:
         - name: redis
-          image: redis:latest
+          image: redis/redis-stack:latest
           ports:
             - containerPort: 6379
+            - containerPort: 8001
           resources:
             requests:
               memory: "256Mi"