Cleanup Dockerfile

.dockerignore

@@ -0,0 +1,5 @@
+/docs
+/tests
+/builder
+/deployment
+*.md

builder/Dockerfile

@@ -1,17 +1,33 @@
-FROM golang AS builder
-RUN mkdir /app
-ADD . /app
-WORKDIR /app
-RUN CGO_ENABLED=0 GOOS=linux go build github.com/Azure/aks-periscope/cmd/aks-periscope
+# Builder
+FROM golang:alpine AS builder
 
+ENV GO111MODULE=on \
+    CGO_ENABLED=0 \
+    GOOS=linux \
+    GOARCH=amd64
+
+WORKDIR /build
+
+COPY go.mod .
+COPY go.sum .
+RUN go mod download
+
+COPY . .
+
+RUN go build ./cmd/aks-periscope
+
+# Runner
 FROM alpine
+
 RUN apk --no-cache add ca-certificates curl openssl bash
+
 ADD https://storage.googleapis.com/kubernetes-release/release/v1.16.0/bin/linux/amd64/kubectl /usr/local/bin/kubectl
 RUN chmod +x /usr/local/bin/kubectl
+
 RUN curl -fsSL -o get_helm.sh https://raw.githubusercontent.com/helm/helm/master/scripts/get-helm-3 \
     && chmod +x get_helm.sh \
     && ./get_helm.sh
-RUN mkdir /app
-WORKDIR /app
-COPY --from=builder /app/aks-periscope .
-CMD ["./aks-periscope"]
+
+COPY --from=builder /build/aks-periscope /
+
+ENTRYPOINT ["/aks-periscope"]

deployment/aks-periscope.yaml

@@ -92,13 +92,20 @@ spec:
             name: collectors-config
         - secretRef:
             name: azureblob-secret
+        volumeMounts:
+        - name: varlog
+          mountPath: /var/log
         resources:
           requests:
             memory: "500Mi"
             cpu: "250m"
           limits:
             memory: "2000Mi"
             cpu: "1000m"
+      volumes:
+      - name: varlog
+        hostPath:
+          path: /var/log
 ---
 apiVersion: v1
 kind: Secret

deployment/daemon-set.yaml

@@ -32,8 +32,8 @@ spec:
         - configMapRef:
             name: nodelogs-config
         volumeMounts:
-        - mountPath: /aks-periscope
-          name: aks-periscope-storage
+        - name: varlog
+          mountPath: /var/log
         resources:
           requests:
             memory: "500Mi"
@@ -42,7 +42,6 @@ spec:
             memory: "2000Mi"
             cpu: "1000m"
       volumes:
-      - name: aks-periscope-storage
+      - name: varlog
         hostPath:
-          path: /var/log/aks-periscope
-          type: DirectoryOrCreate
+          path: /var/log