Initial version of modjular-ubuntu.

30-add-host-ip-entry.sh

+#!/bin/bash
+HOST_IP=$(/sbin/ip route|awk '/default/ { print $3 }')
+echo "$HOST_IP host.docker.internal" >> /etc/hosts

Dockerfile

+FROM nginx:1.19.3
+
+LABEL maintainer="Jeffrey Phillips Freeman the@jeffreyfreeman.me"
+
+# Install needed tools
+RUN apt-get update && \
+    apt-get upgrade -y --no-install-recommends && \
+    apt-get dist-upgrade -y --no-install-recommends && \
+    apt-get install -y --no-install-recommends \
+      iproute2 \
+      gawk && \
+    apt-get clean && \
+    rm -r /var/lib/apt/lists/*
+
+# Define the nginx user as www-data
+RUN sed -i 's/^[[:space:]]*user[[:space:]]*[a-zA-Z]*/user www-data/g' /etc/nginx/nginx.conf
+
+COPY docker-entrypoint.sh /docker-entrypoint.sh
+COPY 30-add-host-ip-entry.sh /docker-entrypoint.d/30-add-host-ip-entry.sh
+COPY docker-run.sh /docker-run.sh
+RUN mkdir -p /docker-run.d
+COPY nginx-run.sh /docker-run.d/nginx-run.sh
+
+ENTRYPOINT [ "/docker-entrypoint.sh" ]
+CMD [ "/docker-run.sh" ]
+

docker-compose.yml

+version: '2'
+services:
+  modular-nginx:
+    build: .
+    image: modjular/modjular-nginx:latest

docker-entrypoint.sh

+#!/bin/bash
+
+set -e
+
+if [ -z "${NGINX_ENTRYPOINT_QUIET_LOGS:-}" ]; then
+    exec 3>&1
+else
+    exec 3>/dev/null
+fi
+
+if /usr/bin/find "/docker-entrypoint.d/" -mindepth 1 -maxdepth 1 -type f -print -quit 2>/dev/null | read v; then
+    echo >&3 "$0: /docker-entrypoint.d/ is not empty, will attempt to perform configuration"
+
+    echo >&3 "$0: Looking for shell scripts in /docker-entrypoint.d/"
+    find "/docker-entrypoint.d/" -follow -type f -print | sort -n | while read -r f; do
+        case "$f" in
+            *.sh)
+                if [ -x "$f" ]; then
+                    echo >&3 "$0: Launching $f";
+                    "$f"
+                else
+                    # warn on shell scripts without exec bit
+                    echo >&3 "$0: Ignoring $f, not executable";
+                fi
+                ;;
+            *) echo >&3 "$0: Ignoring $f";;
+        esac
+    done
+
+    echo >&3 "$0: Configuration complete; ready for start up"
+else
+    echo >&3 "$0: No files found in /docker-entrypoint.d/, skipping configuration"
+fi
+
+exec "$@"

docker-run.sh

+#!/bin/bash
+# SIGTERM-handler
+term_handler() {
+  for PID in "${PIDS[@]}"
+  do
+    [[ -n "$PID" ]] && kill "$PID"
+  done
+
+  exit 0
+}
+
+trap 'term_handler' INT QUIT TERM
+
+set -e
+
+# Run all the scripts in the docker-run.d directory. If a script stopping should stop the container then
+# the script should export its PID in the PID variable, otherwise it should not export the variable.
+PIDS=()
+if /usr/bin/find "/docker-run.d/" -mindepth 1 -maxdepth 1 -type f -print -quit 2>/dev/null | read v; then
+  echo >&3 "$0: /docker-run.d/ is not empty, will attempt to bring up services"
+
+  echo >&3 "$0: Looking for shell scripts in /docker-run.d/"
+  for f in $(ls /docker-run.d/* | sort -n)
+  do
+    case "$f" in
+      *.sh)
+        if [ -x "$f" ]; then
+          echo >&3 "$0: Launching $f";
+          unset PID
+          source $f
+          PIDS+=( "${PID}" )
+        else
+          # warn on shell scripts without exec bit
+          echo >&3 "$0: Ignoring $f, not executable";
+        fi
+        ;;
+      *) echo >&3 "$0: Ignoring $f";;
+    esac
+  done
+
+
+  echo >&3 "$0: Start up complete, all services are now running."
+else
+  echo >&3 "$0: No files found in /docker-run.d/, nothing to do, exiting!"
+  exit 0
+fi
+
+# Run indefinately until one of the running processes stops
+ALL_RUNNING="true"
+while [[ "$ALL_RUNNING" == "true" ]]; do
+  sleep 1
+  for PID in "${PIDS[@]}"
+  do
+    if [[ ! -e /proc/$PID ]]; then
+      ALL_RUNNING="false"
+      echo "One of the processes shutdown: ${PID}"
+    fi
+  done
+done
+
+# Stop container properly
+term_handler

nginx-run.sh

+echo "Running nginx..."
+nginx -g "daemon off;" &
+export PID="$!"
+echo "...nginx is now running: ${PID}"