Initial commit

image_files/fsroot/docker-entrypoint.d/30-prepare-env.sh

@@ -0,0 +1,33 @@
+# #############################################################################
+# Docker Entrypoint scipt - Prepare Application Enviroment
+# #############################################################################
+
+export PORT=${APP_PORT:-3000}
+
+# ----- Setup the Environment
+
+if [ "${ENABLE_DUMMY_DAEMON}" = "true" ]; then
+  # Assume it is a development environment if ENABLE_DUMMY_DAEMON=true
+  export APP_ENV="development"
+  export NODE_ENV="development"
+  export LOG_LEVEL="debug"
+
+else
+  # Starting as normal, so it should not be a development environment
+  # It should be a service for Production, UAT, or even demo
+  
+  export APP_ENV=${APP_ENV:-production}
+
+  # Because of the Price Logging framework does not support setting
+  # the JSON format explicitly, we have to set NODE_ENV="production" 
+  # in order to log in JSON format. Even it should be set to "development"
+  export NODE_ENV="production"
+
+  if [ \( -z "${LOG_LEVEL}" \) -o \( "${LOG_LEVEL}" = "" \) ]; then
+      if [ "${APP_ENV}" = "production" ]; then
+          export LOG_LEVEL="info"
+      else
+          export LOG_LEVEL="debug"
+      fi
+  fi
+fi

image_files/fsroot/docker-entrypoint.d/31-prepare-shell-env.sh

@@ -0,0 +1,16 @@
+# #############################################################################
+# Docker Entrypoint scipt - Prepare the shell enviroment
+# #############################################################################
+
+# For Bash
+cat "/docker-entrypoint.d/files/dot-bashrc.append" >> /home/node/.bashrc
+
+if [ "${ENABLE_DUMMY_DAEMON}" = "true" ]; then
+  # Assume it is a development environment if ENABLE_DUMMY_DAEMON=true
+  # Append the following lines for shell operations
+  echo "export APP_ENV=${APP_ENV}" >> /home/node/.bashrc
+  echo "export NODE_ENV=${NODE_ENV}" >> /home/node/.bashrc
+  echo "export LOG_LEVEL=${LOG_LEVEL}" >> /home/node/.bashrc
+  echo "export APP_PORT=${APP_PORT}" >> /home/node/.bashrc
+  echo "unset LOG_IN_JSON_FMT" >> /home/node/.bashrc
+fi

image_files/fsroot/docker-entrypoint.d/90-start-app.sh

@@ -0,0 +1,17 @@
+# Start application
+
+# By-pass starting the node.js if ENABLE_DUMMY_DAEMON=true
+if [ ! "${ENABLE_DUMMY_DAEMON}" = "true" ]; then
+
+  # Change to APP Root Folder to run app
+  cd ${APP_ROOT}
+
+  # Start NodeJS App - 'start:prod'
+  # Note: Don't run 'start:dev' for development environment
+  #       instead, set environment variable: APP_ENV=development
+  #       Optionally, you can override the LOG_LEVEL as needed. 
+  
+  # TODO: Handle env properly 
+  # dumb-init yarn start:prod
+  dumb-init yarn -s start:prod
+fi

image_files/fsroot/docker-entrypoint.d/files/dot-bashrc.append

@@ -0,0 +1,6 @@
+# customisation for bash
+
+# aliases
+alias ll='ls -l'
+alias la='ls -A'
+alias l='ls -CF'

image_files/fsroot/docker-entrypoint.sh

@@ -0,0 +1,36 @@
+#!/bin/sh
+
+# This script use sh. Since the sh may be different function in distributions.
+# In order to make the maximum compatibility, please use classic technique.
+# Example, if-condition, 'source' command.
+
+# Exit immediately if a command exits with a non-zero status.
+set -e
+# (same as set -o errexit)
+
+# The condition use classic technique
+if [ \( "${LOG_IN_JSON_FMT}" = "false" \) -o \( "${LOG_IN_JSON_FMT}" = "0" \) ]; then
+    unset LOG_IN_JSON_FMT
+    # Otherwise, other value will enable Log in JSON
+fi
+. /usr/local/bin/script_utils.sh
+
+# Run (startup) scripts for the entrypoint if any:
+if [ $# -eq 0 ]; then
+    if [ -d '/docker-entrypoint.d' ]; then
+        for f in /docker-entrypoint.d/*.sh; do
+            . "$f" "$@"
+        done
+    fi
+    # If daemon script does not work as daemon,
+    # Use the follow command to keep the container running as daemon
+    if [ "${ENABLE_DUMMY_DAEMON}" = "true" ]; then
+        logging_warning "[!] Running as dummy daemon"
+        tail -f /dev/null
+    else
+        # Run the shell
+        /bin/sh
+    fi
+else
+    exec "$@"
+fi

image_files/fsroot/usr/local/bin/script_utils.sh

@@ -0,0 +1,49 @@
+#!/bin/sh
+
+# Utility functions for shell script
+
+
+# Very simple 'logger' for shell script support JSON output
+# To turn on JSON output, set env LOG_IN_JSON_FMT=1
+# ---------------------
+logging_info () {
+    msg="${1}"
+    logging_msg "INFO" "\${msg}"
+}
+
+logging_warning () {
+    msg="${1}"
+    logging_msg "WARNING" "\${msg}"
+}
+
+logging_error () {
+    msg="${1}"
+    logging_msg "ERROR" "\${msg}"
+}
+
+logging_msg () {
+    eval level="${1}"
+    eval msg="${2}"
+    #TODO, handle 4 env or detect if it is k8s
+    if [ ! -z "$LOG_IN_JSON_FMT" ]; then
+        echo_json_log "INFO" "\${msg}"
+    else
+        # echo "$ENV - $msg"
+        echo "$msg"
+    fi  
+}
+
+echo_json_log () {
+    eval level="$1"
+    eval msg="${2}"
+
+    # Handle double quote
+    msg="${msg//[\"]/\\\"}"
+    # Handle mutliline
+    msg=$(echo "$msg" | sed -e '1h;2,$H;$!d;g' -re 's/([^\n]*)\n([^\n]*)/\1\\n\2/g' )
+
+    #Replace %N with %3N for milliseconds, %6N for micro-seconds...
+    # now=`date '+%FT%T.%3N%:z'`
+    now=`date '+%FT%T%z'`
+    echo "{\"time\": \"${now}\", \"level\": \"${level}\", \"message\": \"${msg}\"}"
+}