Fix how npm is upgraded, add npm update line for electron

templates/tools/dockerfile/node_deps.include

@@ -5,8 +5,8 @@
 RUN touch .profile
 RUN curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.25.4/install.sh | bash
 # Install all versions of node that we want to test
-RUN /bin/bash -l -c "nvm install 4 && npm config set cache /tmp/npm-cache"
-RUN /bin/bash -l -c "nvm install 5 && npm config set cache /tmp/npm-cache"
-RUN /bin/bash -l -c "nvm install 6 && npm config set cache /tmp/npm-cache"
-RUN /bin/bash -l -c "nvm install 8 && npm config set cache /tmp/npm-cache"
+RUN /bin/bash -l -c "nvm install 4 && npm config set cache /tmp/npm-cache && npm install -g npm"
+RUN /bin/bash -l -c "nvm install 5 && npm config set cache /tmp/npm-cache && npm install -g npm"
+RUN /bin/bash -l -c "nvm install 6 && npm config set cache /tmp/npm-cache && npm install -g npm"
+RUN /bin/bash -l -c "nvm install 8 && npm config set cache /tmp/npm-cache && npm install -g npm"
 RUN /bin/bash -l -c "nvm alias default 8"

tools/dockerfile/interoptest/grpc_interop_node/Dockerfile

@@ -70,10 +70,10 @@ RUN pip install futures==2.2.0 enum34==1.0.4 protobuf==3.2.0 six==1.10.0
 RUN touch .profile
 RUN curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.25.4/install.sh | bash
 # Install all versions of node that we want to test
-RUN /bin/bash -l -c "nvm install 4 && npm config set cache /tmp/npm-cache"
-RUN /bin/bash -l -c "nvm install 5 && npm config set cache /tmp/npm-cache"
-RUN /bin/bash -l -c "nvm install 6 && npm config set cache /tmp/npm-cache"
-RUN /bin/bash -l -c "nvm install 8 && npm config set cache /tmp/npm-cache"
+RUN /bin/bash -l -c "nvm install 4 && npm config set cache /tmp/npm-cache && npm install -g npm"
+RUN /bin/bash -l -c "nvm install 5 && npm config set cache /tmp/npm-cache && npm install -g npm"
+RUN /bin/bash -l -c "nvm install 6 && npm config set cache /tmp/npm-cache && npm install -g npm"
+RUN /bin/bash -l -c "nvm install 8 && npm config set cache /tmp/npm-cache && npm install -g npm"
 RUN /bin/bash -l -c "nvm alias default 8"
 # Prepare ccache
 RUN ln -s /usr/bin/ccache /usr/local/bin/gcc

tools/dockerfile/test/multilang_jessie_x64/Dockerfile

@@ -81,10 +81,10 @@ RUN apt-get update && apt-get -y install libgflags-dev libgtest-dev libc++-dev c
 RUN touch .profile
 RUN curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.25.4/install.sh | bash
 # Install all versions of node that we want to test
-RUN /bin/bash -l -c "nvm install 4 && npm config set cache /tmp/npm-cache"
-RUN /bin/bash -l -c "nvm install 5 && npm config set cache /tmp/npm-cache"
-RUN /bin/bash -l -c "nvm install 6 && npm config set cache /tmp/npm-cache"
-RUN /bin/bash -l -c "nvm install 8 && npm config set cache /tmp/npm-cache"
+RUN /bin/bash -l -c "nvm install 4 && npm config set cache /tmp/npm-cache && npm install -g npm"
+RUN /bin/bash -l -c "nvm install 5 && npm config set cache /tmp/npm-cache && npm install -g npm"
+RUN /bin/bash -l -c "nvm install 6 && npm config set cache /tmp/npm-cache && npm install -g npm"
+RUN /bin/bash -l -c "nvm install 8 && npm config set cache /tmp/npm-cache && npm install -g npm"
 RUN /bin/bash -l -c "nvm alias default 8"
 #=================
 # PHP dependencies

tools/dockerfile/test/node_jessie_x64/Dockerfile

@@ -85,10 +85,10 @@ RUN pip install futures==2.2.0 enum34==1.0.4 protobuf==3.2.0 six==1.10.0
 RUN touch .profile
 RUN curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.25.4/install.sh | bash
 # Install all versions of node that we want to test
-RUN /bin/bash -l -c "nvm install 4 && npm config set cache /tmp/npm-cache"
-RUN /bin/bash -l -c "nvm install 5 && npm config set cache /tmp/npm-cache"
-RUN /bin/bash -l -c "nvm install 6 && npm config set cache /tmp/npm-cache"
-RUN /bin/bash -l -c "nvm install 8 && npm config set cache /tmp/npm-cache"
+RUN /bin/bash -l -c "nvm install 4 && npm config set cache /tmp/npm-cache && npm install -g npm"
+RUN /bin/bash -l -c "nvm install 5 && npm config set cache /tmp/npm-cache && npm install -g npm"
+RUN /bin/bash -l -c "nvm install 6 && npm config set cache /tmp/npm-cache && npm install -g npm"
+RUN /bin/bash -l -c "nvm install 8 && npm config set cache /tmp/npm-cache && npm install -g npm"
 RUN /bin/bash -l -c "nvm alias default 8"
 # Prepare ccache
 RUN ln -s /usr/bin/ccache /usr/local/bin/gcc

tools/run_tests/helper_scripts/build_node_electron.sh

@@ -28,4 +28,5 @@ export npm_config_disturl=https://atom.io/download/atom-shell
 export npm_config_runtime=electron
 export npm_config_build_from_source=true
 mkdir -p ~/.electron-gyp
+HOME=~/.electron-gyp npm update --prefer-online
 HOME=~/.electron-gyp npm install --unsafe-perm

tools/run_tests/helper_scripts/pre_build_node.sh

@@ -20,9 +20,6 @@ source ~/.nvm/nvm.sh
 nvm install $NODE_VERSION
 set -ex
 
-# Update npm to at least version 5
-npm update -g npm
-
 export GRPC_CONFIG=${CONFIG:-opt}
 
 npm update --prefer-online