add 3 integration-tests

.woodpecker.yml

@@ -22,3 +22,19 @@ pipeline:
     image: golang:1.18
     commands:
       - go build
+
+  integration-tests:
+    image: golang:1.18
+    detach: true
+    commands:
+      - go run . --verbose &
+      - pid=$!
+      - sleep 10s
+      - cd integration && go test -tags integration  ./...
+      - kill $pid
+    environment:
+      - ACME_API=https://acme.mock.directory
+      - ACME_ACCEPT_TERMS=true
+      - PAGES_DOMAIN=localhost.mock.directory
+      - RAW_DOMAIN=raw.localhost.mock.directory
+      - PORT=4430