Add dig and nslookup

Dockerfile

@@ -5,7 +5,7 @@ RUN mkdir /app
 WORKDIR /app/
 
 # Add common checking tools
-RUN apk --no-cache add bash=~5.0 curl=~7.79 jq=~1.6
+RUN apk --no-cache add bash=~5.0 curl=~7.79 jq=~1.6 bind-tools=~9.16
 
 # Add minitor user for running as non-root
 RUN addgroup -S minitor && adduser -S minitor -G minitor

Dockerfile.multi-stage

@@ -22,7 +22,7 @@ WORKDIR /app/
 COPY --from=builder /app/minitor .
 
 # Add common checking tools
-RUN apk --no-cache add bash=~5.0 curl=~7.79 jq=~1.6
+RUN apk --no-cache add bash=~5.0 curl=~7.79 jq=~1.6 bind-tools=~9.16
 
 # Add minitor user for running as non-root
 RUN addgroup -S minitor && adduser -S minitor -G minitor