Copy all files from kubernetes repo into this one

This commit is a like-for-like copy of the [kubernetes repo](https://github.com/python-discord/kubernetes) check that repo for comit history prioir to this commit.

Co-authored-by: Amrou Bellalouna <[email protected]>
Co-authored-by: Bradley Reynolds <[email protected]>
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5 files changed, 127 insertions, 0 deletions

diff --git a/kubernetes/namespaces/monitoring/exporters/README.md b/kubernetes/namespaces/monitoring/exporters/README.md
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+++ b/kubernetes/namespaces/monitoring/exporters/README.md
@@ -0,0 +1,8 @@
+# Exporters
+This directory contains prometheus exporters for various services running on our cluster.
+
+If any secrets are required for each exporter they will be in a secrets.yaml file next to the deployment.
+
+Below is a list of the exporters:
+- [postgres_exporter](https://github.com/wrouesnel/postgres_exporter)
+- [redis_exporter](https://github.com/oliver006/redis_exporter)
diff --git a/kubernetes/namespaces/monitoring/exporters/postgres/postgres_exporter.yaml b/kubernetes/namespaces/monitoring/exporters/postgres/postgres_exporter.yaml
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+# Exporter for taking statistics on our PostgreSQL instance
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: postgres-exporter
+  namespace: monitoring
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: postgres-exporter
+  template:
+    metadata:
+      labels:
+        app: postgres-exporter
+    spec:
+      containers:
+        - name: postgres-exporter
+          image: quay.io/prometheuscommunity/postgres-exporter:latest
+          imagePullPolicy: Always
+          resources:
+            requests:
+              cpu: 5m
+              memory: 20Mi
+            limits:
+              cpu: 20m
+              memory: 50Mi
+          ports:
+            - containerPort: 9187
+          env:
+            - name: PG_EXPORTER_EXTEND_QUERY_PATH
+              value: /opt/python-discord/queries/queries.yaml
+          envFrom:
+            - secretRef:
+                name: postgres-exporter-env
+          securityContext:
+            readOnlyRootFilesystem: true
+          volumeMounts:
+          - mountPath: /opt/python-discord/queries
+            name: queries
+      securityContext:
+        fsGroup: 2000
+        runAsUser: 1000
+        runAsNonRoot: true
+      volumes:
+      - configMap:
+          defaultMode: 420
+          name: postgres-exporter-queries
+        name: queries
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: postgres-exporter
+  namespace: monitoring
+  annotations:
+    prometheus.io/scrape: "true"
+    prometheus.io/port: "9187"
+spec:
+  selector:
+    app: postgres-exporter
+  ports:
+    - protocol: TCP
+      port: 9187
+      targetPort: 9187
diff --git a/kubernetes/namespaces/monitoring/exporters/postgres/secrets.yaml b/kubernetes/namespaces/monitoring/exporters/postgres/secrets.yaml
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index 0000000..bec9067
--- /dev/null
+++ b/kubernetes/namespaces/monitoring/exporters/postgres/secrets.yaml
diff --git a/kubernetes/namespaces/monitoring/exporters/redis/redis_exporter.yaml b/kubernetes/namespaces/monitoring/exporters/redis/redis_exporter.yaml
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index 0000000..28a8489
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+++ b/kubernetes/namespaces/monitoring/exporters/redis/redis_exporter.yaml
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+# Exporter for taking statistics on our Redis instance
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: redis-exporter
+  namespace: monitoring
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: redis-exporter
+  template:
+    metadata:
+      labels:
+        app: redis-exporter
+    spec:
+      containers:
+        - name: redis-exporter
+          image: oliver006/redis_exporter:latest
+          imagePullPolicy: Always
+          resources:
+            requests:
+              cpu: 5m
+              memory: 20Mi
+            limits:
+              cpu: 20m
+              memory: 50Mi
+          ports:
+            - containerPort: 9187
+          envFrom:
+            - secretRef:
+                name: redis-exporter-env
+          securityContext:
+            readOnlyRootFilesystem: true
+      securityContext:
+        fsGroup: 2000
+        runAsUser: 1000
+        runAsNonRoot: true
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: redis-exporter
+  namespace: monitoring
+  annotations:
+    prometheus.io/scrape: "true"
+    prometheus.io/port: "9121"
+spec:
+  selector:
+    app: redis-exporter
+  ports:
+    - protocol: TCP
+      port: 9121
+      targetPort: 9121
diff --git a/kubernetes/namespaces/monitoring/exporters/redis/secrets.yaml b/kubernetes/namespaces/monitoring/exporters/redis/secrets.yaml
new file mode 100644
index 0000000..f6ce9d0
--- /dev/null
+++ b/kubernetes/namespaces/monitoring/exporters/redis/secrets.yaml