Add go operator

.dockerignore

@@ -0,0 +1,3 @@
+# More info: https://docs.docker.com/engine/reference/builder/#dockerignore-file
+# Ignore build and test binaries.
+bin/

.github/CODEOWNERS

@@ -0,0 +1 @@
+as51340

.gitignore

@@ -12,3 +12,5 @@ bin
 *.swp
 *.swo
 *~
+
+./manager

.gitmodules

@@ -1,4 +1,4 @@
 [submodule "helm-charts"]
 	path = helm-charts
-  url = https://github.com/memgraph/helm-charts.git
+	url = https://github.com/memgraph/helm-charts.git
   branch = main

.golangci.yml

@@ -0,0 +1,40 @@
+run:
+  deadline: 5m
+  allow-parallel-runners: true
+
+issues:
+  # don't skip warning about doc comments
+  # don't exclude the default set of lint
+  exclude-use-default: false
+  # restore some of the defaults
+  # (fill in the rest as needed)
+  exclude-rules:
+    - path: "api/*"
+      linters:
+        - lll
+    - path: "internal/*"
+      linters:
+        - dupl
+        - lll
+linters:
+  disable-all: true
+  enable:
+    - dupl
+    - errcheck
+    - exportloopref
+    - goconst
+    - gocyclo
+    - gofmt
+    - goimports
+    - gosimple
+    - govet
+    - ineffassign
+    - lll
+    - misspell
+    - nakedret
+    - prealloc
+    - staticcheck
+    - typecheck
+    - unconvert
+    - unparam
+    - unused

.pre-commit-config.yaml

@@ -1,6 +1,6 @@
 repos:
 - repo: https://github.com/pre-commit/pre-commit-hooks
-  rev: v4.5.0
+  rev: v4.6.0
   hooks:
   - id: trailing-whitespace
   - id: end-of-file-fixer
@@ -10,3 +10,9 @@ repos:
   - id: mixed-line-ending
   - id: check-merge-conflict
   - id: detect-private-key
+
+- repo: https://github.com/tekwizely/pre-commit-golang
+  rev: v1.0.0-rc.1
+  hooks:
+  -   id: go-mod-tidy
+  -   id: go-fmt

Dockerfile

@@ -1,7 +1,33 @@
 # Build the manager binary
-FROM quay.io/operator-framework/helm-operator:v1.35.0
+FROM golang:1.22 AS builder
+ARG TARGETOS
+ARG TARGETARCH
 
-ENV HOME=/opt/helm
-COPY watches.yaml ${HOME}/watches.yaml
-COPY helm-charts  ${HOME}/helm-charts
-WORKDIR ${HOME}
+WORKDIR /workspace
+# Copy the Go Modules manifests
+COPY go.mod go.mod
+COPY go.sum go.sum
+# cache deps before building and copying source so that we don't need to re-download as much
+# and so that source changes don't invalidate our downloaded layer
+RUN go mod download
+
+# Copy the go source
+COPY cmd/main.go cmd/main.go
+COPY api/ api/
+COPY internal/controller/ internal/controller/
+
+# Build
+# the GOARCH has not a default value to allow the binary be built according to the host where the command
+# was called. For example, if we call make docker-build in a local env which has the Apple Silicon M1 SO
+# the docker BUILDPLATFORM arg will be linux/arm64 when for Apple x86 it will be linux/amd64. Therefore,
+# by leaving it empty we can ensure that the container and binary shipped on it will have the same platform.
+RUN CGO_ENABLED=0 GOOS=${TARGETOS:-linux} GOARCH=${TARGETARCH} go build -a -o manager cmd/main.go
+
+# Use distroless as minimal base image to package the manager binary
+# Refer to https://github.com/GoogleContainerTools/distroless for more details
+FROM gcr.io/distroless/static:nonroot
+WORKDIR /
+COPY --from=builder /workspace/manager .
+USER 65532:65532
+
+ENTRYPOINT ["/manager"]