added system tasks

backend/scripts/install-chromedriver.sh

@@ -1,26 +1,28 @@
+#!/bin/bash
+
+# fail immediately if error
+set -e
+
 # lock global
 touch /tmp/install.lock
 
 # lock
 touch /tmp/install-chromedriver.lock
 
-export DEBIAN_FRONTEND=noninteractive \
-  && apt-get update \
-  && apt-get install \
-    unzip \
-  && \
-  DL=https://dl.google.com/linux/direct/google-chrome-stable_current_amd64.deb \
-  && curl -sL "$DL" > /tmp/chrome.deb \
-  && apt install --no-install-recommends --no-install-suggests -y \
-    /tmp/chrome.deb \
-  && CHROMIUM_FLAGS='--no-sandbox --disable-dev-shm-usage' \
-  && sed -i '${s/$/'" $CHROMIUM_FLAGS"'/}' /opt/google/chrome/google-chrome \
-  && BASE_URL=https://chromedriver.storage.googleapis.com \
-  && VERSION=$(curl -sL "$BASE_URL/LATEST_RELEASE") \
-  && curl -sL "$BASE_URL/$VERSION/chromedriver_linux64.zip" -o /tmp/driver.zip \
-  && unzip /tmp/driver.zip \
-  && chmod 755 chromedriver \
-  && mv chromedriver /usr/local/bin
+export DEBIAN_FRONTEND=noninteractive
+apt-get update
+apt-get install unzip
+DL=https://dl.google.com/linux/direct/google-chrome-stable_current_amd64.deb
+curl -sL "$DL" > /tmp/chrome.deb
+apt install --no-install-recommends --no-install-suggests -y /tmp/chrome.deb
+CHROMIUM_FLAGS='--no-sandbox --disable-dev-shm-usage'
+sed -i '${s/$/'" $CHROMIUM_FLAGS"'/}' /opt/google/chrome/google-chrome
+BASE_URL=https://chromedriver.storage.googleapis.com
+VERSION=$(curl -sL "$BASE_URL/LATEST_RELEASE")
+curl -sL "$BASE_URL/$VERSION/chromedriver_linux64.zip" -o /tmp/driver.zip
+unzip /tmp/driver.zip
+chmod 755 chromedriver
+mv chromedriver /usr/local/bin
 
 # unlock global
 rm /tmp/install.lock

backend/scripts/install-dotnet.sh

@@ -1,3 +1,8 @@
+#!/bin/bash
+
+# fail immediately if error
+set -e
+
 # lock global
 touch /tmp/install.lock
 

backend/scripts/install-firefox.sh

@@ -1,3 +1,8 @@
+#!/bin/bash
+
+# fail immediately if error
+set -e
+
 # lock global
 touch /tmp/install.lock
 

backend/scripts/install-go.sh

@@ -1,4 +1,8 @@
 #!/bin/bash
+
+# fail immediately if error
+set -e
+
 # lock global
 touch /tmp/install.lock
 

backend/scripts/install-java.sh

@@ -1,5 +1,8 @@
 #!/bin/bash
 
+# fail immediately if error
+set -e
+
 # lock global
 touch /tmp/install.lock
 
@@ -7,9 +10,9 @@ touch /tmp/install.lock
 touch /tmp/install-java.lock
 
 # install java
-apt-get clean && \
-	apt-get update --fix-missing && \
-	apt-get install -y --fix-missing default-jdk
+apt-get clean
+apt-get update --fix-missing
+apt-get install -y --fix-missing default-jdk
 ln -s /usr/bin/java /usr/local/bin/java
 
 # unlock

backend/scripts/install-nodejs.sh

@@ -1,5 +1,8 @@
 #!/bin/bash
 
+# fail immediately if error
+set -e
+
 # lock global
 touch /tmp/install.lock
 
@@ -20,7 +23,7 @@ apt-get update && apt-get install -yq libgconf-2-4
 # Note: this installs the necessary libs to make the bundled version 
 # of Chromium that Puppeteer
 # installs, work.
-RUN apt-get update \
+apt-get update \
     && apt-get install -y wget gnupg \
     && wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add - \
     && sh -c 'echo "deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main" >> /etc/apt/sources.list.d/google.list' \

backend/scripts/install-nvm.sh

@@ -1,4 +1,7 @@
-#!/usr/bin/env bash
+#!/bin/bash
+
+# fail immediately if error
+set -e
 
 { # this ensures the entire script is downloaded #
 

backend/scripts/install-php.sh

@@ -1,3 +1,8 @@
+#!/bin/bash
+
+# fail immediately if error
+set -e
+
 # lock global
 touch /tmp/install.lock
 

backend/scripts/install.sh

@@ -1,5 +1,8 @@
 #!/bin/bash
 
+# fail immediately if error
+set -e
+
 # install node.js
 if [ "${CRAWLAB_SERVER_LANG_NODE}" = "Y" ];
 then