feat: add healthcheck (#141)

* feat: add healtcheck app

Signed-off-by: rare-magma <rare-magma@posteo.eu>

* feat: add healthz endpoint

Signed-off-by: rare-magma <rare-magma@posteo.eu>

* ci: add healthcheck directive to dockerfile

Signed-off-by: rare-magma <rare-magma@posteo.eu>

---------

Signed-off-by: rare-magma <rare-magma@posteo.eu>

Dockerfile

@@ -11,15 +11,18 @@ COPY . .
 
 ENV CGO_ENABLED=0
 
-RUN go build -o anonymousoverflow
+RUN go build -o anonymousoverflow && go build -o healthcheck ./src/healthcheck
 
 FROM scratch
 
 COPY --from=build /app/anonymousoverflow /anonymousoverflow
+COPY --from=build /app/healthcheck /healthcheck
 COPY templates /templates
 COPY public /public
 COPY --from=build /etc/ssl/certs /etc/ssl/certs
 
+HEALTHCHECK --interval=60s --timeout=5s --start-period=2s --retries=3 CMD [ "/healthcheck","http://localhost:8080/healthz" ]
+
 EXPOSE 8080
 
 CMD ["/anonymousoverflow"]

go.mod

@@ -5,42 +5,63 @@ go 1.19
 require (
 	github.com/PuerkitoBio/goquery v1.9.1
 	github.com/alecthomas/chroma v0.10.0
-	github.com/gin-gonic/gin v1.9.1
+	github.com/gin-gonic/gin v1.10.0
 	github.com/go-resty/resty/v2 v2.12.0
 	github.com/golang-jwt/jwt/v4 v4.5.0
 	github.com/joho/godotenv v1.5.1
 )
 
 require (
 	github.com/andybalholm/cascadia v1.3.2 // indirect
-	github.com/bytedance/sonic v1.11.3 // indirect
+	github.com/apapsch/go-jsonmerge/v2 v2.0.0 // indirect
+	github.com/bytedance/sonic v1.11.6 // indirect
+	github.com/bytedance/sonic/loader v0.1.1 // indirect
+	github.com/cespare/xxhash/v2 v2.2.0 // indirect
 	github.com/chenzhuoyu/base64x v0.0.0-20230717121745-296ad89f973d // indirect
 	github.com/chenzhuoyu/iasm v0.9.1 // indirect
+	github.com/cloudwego/base64x v0.1.4 // indirect
+	github.com/cloudwego/iasm v0.2.0 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect
 	github.com/dlclark/regexp2 v1.11.0 // indirect
 	github.com/gabriel-vasile/mimetype v1.4.3 // indirect
 	github.com/gin-contrib/sse v0.1.0 // indirect
 	github.com/go-playground/locales v0.14.1 // indirect
 	github.com/go-playground/universal-translator v0.18.1 // indirect
-	github.com/go-playground/validator/v10 v10.19.0 // indirect
+	github.com/go-playground/validator/v10 v10.20.0 // indirect
 	github.com/goccy/go-json v0.10.2 // indirect
+	github.com/golang/snappy v0.0.4 // indirect
+	github.com/google/uuid v1.3.1 // indirect
+	github.com/influxdata/influxdb-client-go/v2 v2.13.0 // indirect
+	github.com/influxdata/line-protocol v0.0.0-20200327222509-2487e7298839 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/klauspost/compress v1.16.7 // indirect
 	github.com/klauspost/cpuid/v2 v2.2.7 // indirect
 	github.com/leodido/go-urn v1.4.0 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
-	github.com/pelletier/go-toml/v2 v2.2.0 // indirect
+	github.com/montanaflynn/stats v0.0.0-20171201202039-1bf9dbcd8cbe // indirect
+	github.com/oapi-codegen/runtime v1.0.0 // indirect
+	github.com/pelletier/go-toml/v2 v2.2.2 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/redis/go-redis/v9 v9.5.3 // indirect
 	github.com/stretchr/testify v1.9.0 // indirect
+	github.com/tavsec/gin-healthcheck v1.6.2 // indirect
 	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
 	github.com/ugorji/go/codec v1.2.12 // indirect
-	golang.org/x/arch v0.7.0 // indirect
-	golang.org/x/crypto v0.22.0 // indirect
-	golang.org/x/net v0.24.0 // indirect
-	golang.org/x/sys v0.19.0 // indirect
-	golang.org/x/text v0.14.0 // indirect
-	google.golang.org/protobuf v1.33.0 // indirect
+	github.com/xdg-go/pbkdf2 v1.0.0 // indirect
+	github.com/xdg-go/scram v1.1.2 // indirect
+	github.com/xdg-go/stringprep v1.0.4 // indirect
+	github.com/youmark/pkcs8 v0.0.0-20181117223130-1be2e3e5546d // indirect
+	go.mongodb.org/mongo-driver v1.15.0 // indirect
+	golang.org/x/arch v0.8.0 // indirect
+	golang.org/x/crypto v0.23.0 // indirect
+	golang.org/x/net v0.25.0 // indirect
+	golang.org/x/sync v0.7.0 // indirect
+	golang.org/x/sys v0.20.0 // indirect
+	golang.org/x/text v0.15.0 // indirect
+	google.golang.org/protobuf v1.34.1 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )