standardize apt-get

root/etc/cont-init.d/94-nodejs-src

@@ -0,0 +1,15 @@
+#!/usr/bin/with-contenv bash
+
+echo "**** installing nodejs dev environment ****"
+if ! dpkg -l | grep gnupg > /dev/null; then
+    apt-get update && apt-get install -y gnupg
+fi
+
+[[ ! -f "/etc/apt/sources.list.d/nodesource.list" ]] && \
+    curl -s https://deb.nodesource.com/gpgkey/nodesource.gpg.key | apt-key add - && \
+    echo 'deb https://deb.nodesource.com/node_12.x bionic main' \
+        > /etc/apt/sources.list.d/nodesource.list
+[[ ! -f "/etc/apt/sources.list.d/yarn.list" ]] && \
+    curl -s https://dl.yarnpkg.com/debian/pubkey.gpg | apt-key add - && \
+    echo 'deb https://dl.yarnpkg.com/debian/ stable main' \
+        > /etc/apt/sources.list.d/yarn.list

root/etc/cont-init.d/95-apt-get

@@ -0,0 +1,3 @@
+#!/usr/bin/with-contenv bash
+
+apt-get update

root/etc/cont-init.d/98-nodejs

@@ -1,17 +1,6 @@
 #!/usr/bin/with-contenv bash
 
-echo "**** installing nodejs dev environment ****"
+echo "**** Installing nodejs and yarn"
-if ! dpkg -l | grep gnupg > /dev/null; then
+apt-get install -y \
-  apt-get update && apt-get install -y gnupg
+    nodejs \
-fi
+    yarn
-[[ ! -f "/etc/apt/sources.list.d/nodesource.list" ]] && \
-  curl -s https://deb.nodesource.com/gpgkey/nodesource.gpg.key | apt-key add - && \
-  echo 'deb https://deb.nodesource.com/node_12.x bionic main' \
-    > /etc/apt/sources.list.d/nodesource.list
-[[ ! -f "/etc/apt/sources.list.d/yarn.list" ]] && \
-  curl -s https://dl.yarnpkg.com/debian/pubkey.gpg | apt-key add - && \
-  echo 'deb https://dl.yarnpkg.com/debian/ stable main' \
-    > /etc/apt/sources.list.d/yarn.list
-apt-get update && apt-get install -y \
-  nodejs \
-  yarn