updated script to work with bitbucket and use ssh vs https

updated scripts to support specifying a git branch

updated docs to reflect new environment variables

removed debugging comments

scripts/start.sh

@@ -5,6 +5,10 @@
 mkdir -p -m 0700 /root/.ssh
 echo -e "Host *\n\tStrictHostKeyChecking no\n" >> /root/.ssh/config
 
+if [[ "$GIT_USE_SSH" == "1" ]] ; then
+    echo -e "Host *\n\tUser ${GIT_USERNAME}\n\n" >> /root/.ssh/config
+fi
+
 if [ ! -z "$SSH_KEY" ]; then
  echo $SSH_KEY > /root/.ssh/id_rsa.base64
  base64 -d /root/.ssh/id_rsa.base64 > /root/.ssh/id_rsa
@@ -34,19 +38,25 @@ if [ ! -d "/var/www/html/.git" ]; then
  if [ ! -z "$GIT_REPO" ]; then
    # Remove the test index file
    rm -Rf /var/www/html/*
+
+   GIT_COMMAND='git clone '
+
    if [ ! -z "$GIT_BRANCH" ]; then
-     if [ -z "$GIT_USERNAME" ] && [ -z "$GIT_PERSONAL_TOKEN" ]; then
-       git clone -b $GIT_BRANCH $GIT_REPO /var/www/html/ || exit 1
-     else
-       git clone -b ${GIT_BRANCH} https://${GIT_USERNAME}:${GIT_PERSONAL_TOKEN}@${GIT_REPO} /var/www/html || exit 1
-     fi
-   else
-     if [ -z "$GIT_USERNAME" ] && [ -z "$GIT_PERSONAL_TOKEN" ]; then
-       git clone $GIT_REPO /var/www/html/  || exit 1
-     else
-       git clone https://${GIT_USERNAME}:${GIT_PERSONAL_TOKEN}@${GIT_REPO} /var/www/html || exit 1
-     fi
+   	GIT_COMMAND=${GIT_COMMAND}" -b ${GIT_BRANCH}"
    fi
+
+   if [ -z "$GIT_USERNAME" ] && [ -z "$GIT_PERSONAL_TOKEN" ]; then
+   	GIT_COMMAND=${GIT_COMMAND}" ${GIT_REPO}"
+   else
+    if [[ "$GIT_USE_SSH" == "1" ]]; then
+    	GIT_COMMAND=${GIT_COMMAND}" ${GIT_REPO}"
+    else
+    	GIT_COMMAND=${GIT_COMMAND}" https://${GIT_USERNAME}:${GIT_PERSONAL_TOKEN}@${GIT_REPO}"
+    fi
+   fi
+
+   ${GIT_COMMAND} /var/www/html || exit 1
+
    chown -Rf nginx.nginx /var/www/html
  fi
 fi