fix: Fix #375 errors by installing git, rustup in PATH and flags to accept defaults

Author: ltfschoen

docker/Dockerfile

@@ -1,18 +1,27 @@
+# delete images - docker rmi $(docker images -q) -f
+# delete containers - docker rm $(docker ps -a -q) -f
+
 FROM phusion/baseimage:0.10.1
 LABEL maintainer "[email protected]"
 
+ARG POLKADOT_VERSION=v0.2
 RUN apt-get update && \
 	apt-get upgrade -y && \
 	apt-get install -y cmake pkg-config libssl-dev && \
-	curl https://sh.rustup.rs -sSf | sh && \
+	curl https://sh.rustup.rs -sSf | sh -s -- -y && \
+	echo 'PATH="$/root/.cargo/bin:$PATH";' >> ~/.bash_profile && \
+	. ~/.bash_profile && . /root/.cargo/env && \
+	which rustup && which cargo && \
 	rustup update nightly && \
 	rustup target add wasm32-unknown-unknown --toolchain nightly && \
-	rustup update stable && \
-	cargo install --git https://github.com/alexcrichton/wasm-gc && \
-	git clone https://github.com/paritytech/polkadot.git && \
-	cd polkadot && \
-	./build.sh && \
-	cargo build
+	rustup update stable && rustup default stable && \
+	cargo install --git https://github.com/alexcrichton/wasm-gc --force && \
+	cargo install --git https://github.com/pepyakin/wasm-export-table.git --force && \
+	apt-get install -y git vim curl && \
+	git clone https://github.com/paritytech/polkadot.git && cd polkadot && \
+	git fetch origin ${POLKADOT_VERSION}:${POLKADOT_VERSION} && \
+	git checkout ${POLKADOT_VERSION} && \
+	./build.sh && cargo build
 
 WORKDIR /polkadot
 CMD ["/bin/sh", "polkadot"]

docker/build.sh

@@ -1,3 +1,4 @@
 #!/bin/sh
 
-docker build -t polkadot:0.2 .
+docker build -t polkadot:0.2 .;
+docker run -it polkadot:0.2 bash;