Update Drone configuration and Dockerfile to use mirrorred images.

.drone.yml

@@ -5,20 +5,20 @@ name: build
 
 steps:
   - name: lint
-    image: golangci/golangci-lint:v1.43.0
+    image: code.pztrn.name/containers/mirror/golangci/golangci-lint:v1.46.2
     environment:
       CGO_ENABLED: 0
     commands:
       - golangci-lint run
 
   - name: docker
-    image: plugins/docker
+    image: code.pztrn.name/containers/mirror/plugins/docker:20.13.0
     when:
-      branch: master
+      branch: ["master"]
     settings:
-      username:
-        from_secret: dockerhub_user
+      registry: code.pztrn.name
+      username: drone
       password:
-        from_secret: dockerhub_password
-      repo: pztrn/periodicator
+        from_secret: drone_secret
+      repo: code.pztrn.name/apps/periodicator
       auto_tag: true

Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.17.1-alpine AS build
+FROM code.pztrn.name/containers/mirror/golang:1.18.3-alpine AS build
 
 WORKDIR /go/src/go.dev.pztrn.name/periodicator
 COPY . .
@@ -6,7 +6,7 @@ COPY . .
 ENV CGO_ENABLED=0
 RUN apk add make && make build
 
-FROM alpine:latest
+FROM code.pztrn.name/containers/mirror/alpine:3.16.0
 LABEL maintainer="Stanislav N. <pztrn@pztrn.name>"
 
 COPY --from=build /go/src/go.dev.pztrn.name/periodicator/periodicator /usr/local/bin/periodicator