changed drone to use jsonnet

.drone.jsonnet

@@ -0,0 +1,29 @@
+local pipeline(arch, os) = {
+  kind: "pipeline",
+  name: "build " + os + "/" + arch,
+    platform: {
+    os: os,
+    arch: arch,
+  },
+  steps: [{
+      image: "golang:1.15.6-alpine3.12",
+      environment: {
+        "GOOS": os,
+        "GOARCH": arch,
+        "CGO_ENABLED": "0",
+      },
+      commands: [
+        'go build -ldflags "-X main.version=${DRONE_TAG##v}" -o release/' + os + "/" + arch + "/ubnt-freifunk-map-api .",
+        "tar -cvzf release/ubnt-freifunk-map-api_"+ os + "/" + arch + ".tar.gz -C release/" + os + "/" + arch + " ubnt-freifunk-map-api" 
+      ],
+    },
+  ],
+};
+[
+  pipeline("linux", "amd64"),
+  pipeline("linux", "arm64"),
+  pipeline("darwin", "amd64"),
+  pipeline("darwin", "arm64"),
+  pipeline("windows", "amd64"),
+  pipeline("windows", "arm64"),
+]

.drone.yml

@@ -1,52 +0,0 @@
-global-variables:
-  env: &env
-    image: golang
-    commands:
-      - go build -ldflags "-X main.version=${DRONE_TAG##v}" -o release/$GOOS/$GOARCH/ubnt-freifunk-map-api .
-      - tar -cvzf release/ubnt-freifunk-map-api_$GOOS_$GOARCH.tar.gz -C release/$GOOS/$GOARCH ubnt-freifunk-map-api
-
-kind: pipeline
-type: docker
-name: build go
-
-steps: &steps
-  - name: build linux/amd64
-    <<: *env
-    environment:
-      GOARCH: amd64
-      GOOS: linux
-
-  - name: build linux/arm64
-    <<: *env
-    environment:
-      GOARCH: arm64
-      GOOS: linux
-
-  - name: build windows
-    <<: *env
-    environment:
-      GOARCH: amd64
-      GOOS: windows
-
-  - name: build macos/x64
-    <<: *env
-    environment:
-      GOARCH: amd64
-      GOOS: darwin
-
-  - name: build macos/arm64
-    <<: *env
-    environment:
-      GOARCH: arm64
-      GOOS: darwin
-
-  - name: docker  
-    image: plugins/docker
-    settings:
-      repo: fftdf/ffmap-ubnt-api
-      username:
-        from_secret: docker_username
-      password:
-        from_secret: docker_password
-    when:
-      event: tag