chore: update dockerfile, add tests for dockerfile

Added tests for dockerfile to ensure that GoVersions in dockerfiles stay in sync with Go.mod version.
Updated dockerfile to use a more reliable base image.
Install ca-certificates and curl

Author: Sean Connole

Dockerfile

@@ -1,10 +1,19 @@
-FROM debian
+ARG GO_VERSION=1.22
+FROM golang:${GO_VERSION} AS build
 
-RUN apt update && apt install -y ca-certificates curl
+RUN mkdir -p /go/src/github.com/contentsquare/chproxy
+WORKDIR /go/src/github.com/contentsquare/chproxy
+COPY . ./
+ARG EXT_BUILD_TAG
+ENV EXT_BUILD_TAG=${EXT_BUILD_TAG}
+RUN make release-build
+RUN ls -al /go/src/github.com/contentsquare/chproxy
 
-COPY chproxy /
+FROM alpine
+RUN apk add --no-cache curl ca-certificates
+COPY --from=build /go/src/github.com/contentsquare/chproxy/chproxy* /
 
 EXPOSE 9090
 
-ENTRYPOINT ["/chproxy"]
+ENTRYPOINT [ "/chproxy" ]
 CMD [ "--help" ]

Dockerfile_boringcrypto

@@ -3,7 +3,7 @@ FROM ${UBUNTU_IMAGE} AS build
 
 ENV GOPATH=/gocode
 ENV PATH=$PATH:$GOPATH/bin
-ENV GOVERSION=1.21
+ENV GO_VERSION=1.22
 
 RUN mkdir /scr
 WORKDIR /src
@@ -17,21 +17,23 @@ RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y --no-ins
     && add-apt-repository -y ppa:longsleep/golang-backports \
     && apt-get update \
     && apt-get install -y --no-install-recommends \
-        golang-$GOVERSION-go \
+        golang-$GO_VERSION-go \
         golang-golang-x-tools \
     && apt-get autoremove -y \
     && apt-get remove -y \
         apt-utils \
         software-properties-common
 
 # Create symbolic link
-RUN ln -s /usr/lib/go-$GOVERSION /gocode
+RUN ln -s /usr/lib/go-$GO_VERSION /gocode
 
 # tools
 RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
     git \
     make \
-    tzdata
+    tzdata \
+    curl \
+    ca-certificates
 
 FROM build
 

Dockerfile_build

@@ -0,0 +1,66 @@
+package main
+
+import (
+	"bufio"
+	"os"
+	"regexp"
+	"testing"
+)
+
+func getVersionFromFile(filename string, searchPhrase string) (string, error) {
+	file, err := os.Open(filename)
+	if err != nil {
+		return "", err
+	}
+	defer file.Close()
+
+	scanner := bufio.NewScanner(file)
+	re := regexp.MustCompile(searchPhrase) // Regex to capture Go version
+	for scanner.Scan() {
+		line := scanner.Text()
+		matches := re.FindStringSubmatch(line)
+		if len(matches) > 1 {
+			return matches[1], nil
+		}
+	}
+
+	return "", scanner.Err()
+}
+
+// Test function to check if Go version in go.mod matches Dockerfile
+func TestGoVersionMatching(t *testing.T) {
+	goModVersionSearchPhrase := `^go\s+(\d+\.\d+)`
+	goModVersion, err := getVersionFromFile("go.mod", goModVersionSearchPhrase)
+	if err != nil {
+		t.Fatalf("Error getting Go version from go.mod: %v", err)
+	}
+
+	dockerFileVersionSearchPhrase := "GO_VERSION=(.*)"
+	dockerfileVersion, err := getVersionFromFile("Dockerfile", dockerFileVersionSearchPhrase)
+	if err != nil {
+		t.Fatalf("Error getting Go version from Dockerfile: %v", err)
+	}
+
+	if goModVersion != dockerfileVersion {
+		t.Errorf("Go version mismatch: go.mod (%s), Dockerfile (%s)", goModVersion, dockerfileVersion)
+	}
+}
+
+// Test function to check if Go version in go.mod matches Dockerfile_boringcrypto
+func TestGoVersionMatchingBoringCrypto(t *testing.T) {
+	goModVersionSearchPhrase := `^go\s+(\d+\.\d+)`
+	goModVersion, err := getVersionFromFile("go.mod", goModVersionSearchPhrase)
+	if err != nil {
+		t.Fatalf("Error getting Go version from go.mod: %v", err)
+	}
+
+	dockerFileVersionSearchPhrase := "GO_VERSION=(.*)"
+	dockerfileVersion, err := getVersionFromFile("Dockerfile_boringcrypto", dockerFileVersionSearchPhrase)
+	if err != nil {
+		t.Fatalf("Error getting Go version from Dockerfile_boringcrypto: %v", err)
+	}
+
+	if goModVersion != dockerfileVersion {
+		t.Errorf("Go version mismatch: go.mod (%s), Dockerfile (%s)", goModVersion, dockerfileVersion)
+	}
+}

dockerfile_version_test.go

@@ -1,6 +1,6 @@
 module github.com/contentsquare/chproxy
 
-go 1.19
+go 1.22
 
 require (
 	github.com/alicebob/miniredis/v2 v2.21.0