Merge pull request #60 from kinvolk/dongsu/fix-dockerfile-go

Dockerfile: install vanilla Go 1.16 instead of rpm

Author: Dongsu Park

traceloop-builder.Dockerfile

@@ -1,16 +1,21 @@
 FROM fedora:26
 
 ENV GOPATH /go
+ENV PATH "/usr/local/go/bin:$PATH"
 
 # vim-common is needed for xxd
 # vim-minimal needs to be updated first to avoid an RPM conflict on man1/vim.1.gz
 RUN dnf update -y vim-minimal && \
-	dnf install -y llvm clang kernel-devel make binutils vim-common golang go-bindata ShellCheck git file
+	dnf install -y llvm clang kernel-devel make binutils vim-common go-bindata ShellCheck git file
 
 RUN curl -fsSLo shfmt https://github.com/mvdan/sh/releases/download/v1.3.0/shfmt_v1.3.0_linux_amd64 && \
 	echo "b1925c2c405458811f0c227266402cf1868b4de529f114722c2e3a5af4ac7bb2  shfmt" | sha256sum -c && \
 	chmod +x shfmt && \
 	mv shfmt /usr/bin
+RUN curl -fsSLo go.tar.gz https://golang.org/dl/go1.16.4.linux-amd64.tar.gz && \
+	echo "7154e88f5a8047aad4b80ebace58a059e36e7e2e4eb3b383127a28c711b4ff59  go.tar.gz" | sha256sum -c && \
+	mkdir -p /usr/local && \
+	tar -C /usr/local -xzf go.tar.gz
 RUN go get -u github.com/fatih/hclfmt
 
 RUN mkdir -p /src /go