chore: Enhance Dockerfile for CA certificates installation and update Google OAuth provider for S256 challenge

Author: idylicaro

.gitignore

@@ -25,4 +25,5 @@ go.work
 swagger.json
 docs
 docs.go
-swagger.yaml
+swagger.yaml
+.env.production

Dockerfile

@@ -23,6 +23,12 @@ RUN go build -o main .
 # Production stage: Create a lightweight runtime image for production
 FROM debian:bullseye-slim AS production
 
+# Install and update CA certificates
+RUN apt-get update && \
+    apt-get install -y ca-certificates && \
+    update-ca-certificates && \
+    rm -rf /var/lib/apt/lists/*
+
 # Install necessary libraries (e.g., libc6) to run the Go binary
 RUN apt-get update && \
     apt-get install -y libc6
@@ -50,6 +56,11 @@ ENTRYPOINT ["/app/main"]
 # Development stage: Create a lightweight runtime image for development
 FROM debian:bullseye-slim AS development
 
+# Install and update CA certificates
+RUN apt-get update && \
+    apt-get install -y ca-certificates && \
+    update-ca-certificates
+    
 # Install necessary libraries (e.g., libc6) to run the Go binary
 RUN apt-get update && \
     apt-get install -y libc6

internal/auth/providers/google_provider.go

@@ -27,7 +27,8 @@ func NewGoogleProvider(clientID, clientSecret, redirectURL string) *GoogleProvid
 }
 
 func (g *GoogleProvider) GetAuthURL() string {
-	return g.config.AuthCodeURL("state", oauth2.AccessTypeOffline)
+	verifier := oauth2.GenerateVerifier()
+	return g.config.AuthCodeURL("state", oauth2.AccessTypeOffline, oauth2.S256ChallengeOption(verifier))
 }
 
 func (g *GoogleProvider) ExchangeCode(ctx context.Context, code string) (TokenResponse, error) {