Install platform-specific mkcert

stack-orchestrator/container-build/cerc-go-nitro/Dockerfile

@@ -4,13 +4,13 @@ RUN apt-get update
 RUN apt-get install -y jq netcat-traditional ca-certificates curl
 RUN rm -rf /var/lib/apt/lists/*
 
-# Copy files into image
-WORKDIR /app
+ARG TARGETPLATFORM
 
 # Install mkcert
-RUN curl -JLO "https://dl.filippo.io/mkcert/latest?for=linux/amd64"
-RUN chmod +x mkcert-v*-linux-amd64
-RUN cp mkcert-v*-linux-amd64 /usr/local/bin/mkcert
+RUN curl -JL "https://dl.filippo.io/mkcert/latest?for=$TARGETPLATFORM" -o /usr/local/bin/mkcert && \
+    chmod +x /usr/local/bin/mkcert
+
+WORKDIR /app
 
 # Download binaries
 RUN curl -LO https://git.vdb.to/cerc-io/nitro/releases/download/v0.1.7/nitro