Docker build simplification

diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 00000000..fb833751
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,171 @@
+########################################################################
+#
+# pgAdmin 4 - PostgreSQL Tools
+#
+# Copyright (C) 2013 - 2018, The pgAdmin Development Team
+# This software is released under the PostgreSQL Licence
+#
+#########################################################################
+
+#########################################################################
+# Create a Node container which will be used to build the JS components
+# and clean up the web/ source code
+#########################################################################
+
+FROM node:8-alpine AS app-builder
+
+RUN apk add --no-cache \
+    autoconf \
+    automake \
+    bash \
+    g++ \
+    libc6-compat \
+    libjpeg-turbo-dev \
+    libpng-dev \
+    make \
+    nasm \
+    git \
+    zlib-dev
+
+# Create the /pgadmin4 directory and copy the source into it. Explicitly
+# remove the node_modules directory as we'll recreate a clean version, as well
+# as various other files we don't want
+COPY web /pgadmin4/web
+COPY requirements.txt /pgadmin4/
+RUN rm -rf /pgadmin4/web/*.log \
+           /pgadmin4/web/config_*.py \
+           /pgadmin4/web/node_modules \
+           /pgadmin4/web/regression \
+           `find /pgadmin4/web -type d -name tests` \
+           `find /pgadmin4/web -type f -name .DS_Store`
+
+WORKDIR /pgadmin4/web
+
+# Build the JS vendor code in the app-builder, and then remove the vendor source.
+RUN npm install && \
+	npm audit fix && \
+	rm -f yarn.lock && \
+	yarn import && \
+	yarn audit && \
+	rm -f package-lock.json && \
+    yarn run bundle && \
+    rm -rf node_modules \
+           yarn.lock \
+           package.json \
+           .[^.]* \
+           babel.cfg \
+           webpack.* \
+           karma.conf.js \
+           ./pgadmin/static/js/generated/.cache
+
+#########################################################################
+# Now, create a documentation build container for the Sphinx docs
+#########################################################################
+
+FROM python:3.7-alpine3.9 as docs-builder
+
+# Install only dependencies absolutely required for documentation building
+RUN apk add --no-cache \
+        make \
+        build-base \
+        openssl-dev \
+        libffi-dev && \
+    pip install --no-cache-dir \
+        sphinx \
+        flask_security \
+        flask_paranoid \
+        python-dateutil \
+        flask_sqlalchemy \
+        flask_gravatar \
+        flask_migrate \
+        simplejson \
+        cryptography
+
+# Copy the docs from the local tree. Explicitly remove any existing builds that
+# may be present
+COPY docs /pgadmin4/docs
+COPY web /pgadmin4/web
+RUN rm -rf /pgadmin4/docs/en_US/_build
+
+# Build the docs
+RUN LC_ALL=en_US.UTF-8 LANG=en_US.UTF-8 make -C /pgadmin4/docs/en_US -f Makefile.sphinx html
+
+#########################################################################
+# Create additional builders to get all of the PostgreSQL utilities
+#########################################################################
+
+FROM postgres:9.4-alpine as pg94-builder
+FROM postgres:9.5-alpine as pg95-builder
+FROM postgres:9.6-alpine as pg96-builder
+FROM postgres:10-alpine as pg10-builder
+FROM postgres:11-alpine as pg11-builder
+
+#########################################################################
+# Assemble everything into the final container.
+#########################################################################
+
+FROM python:3.7-alpine3.9
+
+# Copy the PG binaries
+COPY --from=pg94-builder /usr/local/bin/pg_dump /usr/local/pgsql-9.4/
+COPY --from=pg94-builder /usr/local/bin/pg_dumpall /usr/local/pgsql-9.4/
+COPY --from=pg94-builder /usr/local/bin/pg_restore /usr/local/pgsql-9.4/
+COPY --from=pg94-builder /usr/local/bin/psql /usr/local/pgsql-9.4/
+
+COPY --from=pg95-builder /usr/local/bin/pg_dump /usr/local/pgsql-9.5/
+COPY --from=pg95-builder /usr/local/bin/pg_dumpall /usr/local/pgsql-9.5/
+COPY --from=pg95-builder /usr/local/bin/pg_restore /usr/local/pgsql-9.5/
+COPY --from=pg95-builder /usr/local/bin/psql /usr/local/pgsql-9.5/
+
+COPY --from=pg96-builder /usr/local/bin/pg_dump /usr/local/pgsql-9.6/
+COPY --from=pg96-builder /usr/local/bin/pg_dumpall /usr/local/pgsql-9.6/
+COPY --from=pg96-builder /usr/local/bin/pg_restore /usr/local/pgsql-9.6/
+COPY --from=pg96-builder /usr/local/bin/psql /usr/local/pgsql-9.6/
+
+COPY --from=pg10-builder /usr/local/bin/pg_dump /usr/local/pgsql-10/
+COPY --from=pg10-builder /usr/local/bin/pg_dumpall /usr/local/pgsql-10/
+COPY --from=pg10-builder /usr/local/bin/pg_restore /usr/local/pgsql-10/
+COPY --from=pg10-builder /usr/local/bin/psql /usr/local/pgsql-10/
+
+COPY --from=pg11-builder /usr/local/bin/pg_dump /usr/local/pgsql-11/
+COPY --from=pg11-builder /usr/local/bin/pg_dumpall /usr/local/pgsql-11/
+COPY --from=pg11-builder /usr/local/bin/pg_restore /usr/local/pgsql-11/
+COPY --from=pg11-builder /usr/local/bin/psql /usr/local/pgsql-11/
+
+WORKDIR /pgadmin4
+ENV PYTHONPATH=/pgadmin4
+
+# Copy in the code and docs
+COPY --from=app-builder /pgadmin4/web /pgadmin4
+COPY --from=app-builder /pgadmin4/requirements.txt /pgadmin4/requirements.txt
+COPY --from=docs-builder /pgadmin4/docs/en_US/_build/html/ /pgadmin4/docs
+
+# Install build-dependencies, build & install C extensions and purge deps in
+# one RUN step
+RUN apk add --no-cache --virtual \
+        build-deps \
+        build-base \
+        postgresql-dev \
+        libffi-dev \
+        linux-headers && \
+    apk add \
+        postfix \
+        postgresql-client \
+        postgresql-libs && \
+    pip install --upgrade pip && \
+    pip install --no-cache-dir -r requirements.txt && \
+    pip install --no-cache-dir gunicorn && \
+    apk del --no-cache build-deps
+
+# Copy the runner script
+COPY pkg/docker/run_pgadmin.py /pgadmin4
+COPY pkg/docker/entrypoint.sh /entrypoint.sh
+
+# Precompile and optimize python code to save time and space on startup
+RUN python -O -m compileall -x node_modules /pgadmin4
+
+# Finish up
+VOLUME /var/lib/pgadmin
+EXPOSE 80 443
+
+ENTRYPOINT ["/entrypoint.sh"]
diff --git a/Makefile b/Makefile
index 6001066b..6000fe1e 100644
--- a/Makefile
+++ b/Makefile
@@ -77,7 +77,7 @@ runtime:
 	cd runtime && qmake CONFIG+=release && make
 
 # Include all clean sub-targets in clean
-clean: clean-appbundle clean-docker clean-dist clean-docs clean-node clean-pip clean-src clean-runtime
+clean: clean-appbundle clean-dist clean-docs clean-node clean-pip clean-src clean-runtime
 	rm -rf web/pgadmin/static/js/generated/*
 	rm -rf web/pgadmin/static/js/generated/.cache
 	rm -rf web/pgadmin/static/css/generated/*
@@ -90,9 +90,6 @@ clean-runtime:
 clean-appbundle:
 	rm -rf mac-build/
 
-clean-docker:
-	rm -rf docker-build/
-
 clean-dist:
 	rm -rf dist/
 
@@ -109,7 +106,7 @@ clean-src:
 	rm -rf src-build/
 
 docker:
-	./pkg/docker/build.sh
+	docker build `python -c 'import web.config as c; print("-t {0} -t {0}:latest -t {0}:{1} -t {0}:{1}.{2}".format(c.APP_NAME.replace(" ", "").lower(), c.APP_RELEASE, c.APP_REVISION))'` .
 
 docs:
 	LC_ALL=en_US.UTF-8 LANG=en_US.UTF-8 $(MAKE) -C docs/en_US -f Makefile.sphinx html
diff --git a/pkg/docker/.dockerignore b/pkg/docker/.dockerignore
deleted file mode 100644
index 1b7ed264..00000000
--- a/pkg/docker/.dockerignore
+++ /dev/null
@@ -1,2 +0,0 @@
-pgadmin4/web/**/tests/
-pgadmin4/web/regression/
diff --git a/pkg/docker/Dockerfile b/pkg/docker/Dockerfile
deleted file mode 100644
index 2bf82a61..00000000
--- a/pkg/docker/Dockerfile
+++ /dev/null
@@ -1,98 +0,0 @@
-########################################################################
-#
-# pgAdmin 4 - PostgreSQL Tools
-#
-# Copyright (C) 2013 - 2018, The pgAdmin Development Team
-# This software is released under the PostgreSQL Licence
-#
-#########################################################################
-
-# First of all, build frontend with NodeJS in a separate builder container
-# Node-8 is supported by all needed C++ packages
-FROM node:8 AS node-builder
-
-COPY ./pgadmin4/web/ /pgadmin4/web/
-WORKDIR /pgadmin4/web
-
-RUN yarn install --cache-folder ./ycache --verbose && \
-    yarn run bundle && \
-    rm -rf ./ycache ./pgadmin/static/js/generated/.cache
-
-# Build Sphinx documentation in separate container
-FROM python:3.7-alpine3.9 as docs-builder
-
-# Install only dependencies absolutely required for documentation building
-RUN apk add --no-cache make build-base openssl-dev libffi-dev && \
-    pip install --no-cache-dir sphinx flask_security flask_paranoid python-dateutil flask_sqlalchemy flask_gravatar flask_migrate simplejson cryptography
-
-COPY ./pgadmin4/ /pgadmin4
-
-# Build the docs
-RUN LC_ALL=en_US.UTF-8 LANG=en_US.UTF-8 make -C /pgadmin4/docs/en_US -f Makefile.sphinx html
-
-# Get the PG binaries
-FROM postgres:9.4-alpine as pg94-builder
-FROM postgres:9.5-alpine as pg95-builder
-FROM postgres:9.6-alpine as pg96-builder
-FROM postgres:10-alpine as pg10-builder
-FROM postgres:11-alpine as pg11-builder
-
-# Then install backend, copy static files and set up entrypoint
-FROM python:3.7-alpine3.9
-
-# Copy the PG binaries
-COPY --from=pg94-builder /usr/local/bin/pg_dump /usr/local/pgsql-9.4/
-COPY --from=pg94-builder /usr/local/bin/pg_dumpall /usr/local/pgsql-9.4/
-COPY --from=pg94-builder /usr/local/bin/pg_restore /usr/local/pgsql-9.4/
-COPY --from=pg94-builder /usr/local/bin/psql /usr/local/pgsql-9.4/
-
-COPY --from=pg95-builder /usr/local/bin/pg_dump /usr/local/pgsql-9.5/
-COPY --from=pg95-builder /usr/local/bin/pg_dumpall /usr/local/pgsql-9.5/
-COPY --from=pg95-builder /usr/local/bin/pg_restore /usr/local/pgsql-9.5/
-COPY --from=pg95-builder /usr/local/bin/psql /usr/local/pgsql-9.5/
-
-COPY --from=pg96-builder /usr/local/bin/pg_dump /usr/local/pgsql-9.6/
-COPY --from=pg96-builder /usr/local/bin/pg_dumpall /usr/local/pgsql-9.6/
-COPY --from=pg96-builder /usr/local/bin/pg_restore /usr/local/pgsql-9.6/
-COPY --from=pg96-builder /usr/local/bin/psql /usr/local/pgsql-9.6/
-
-COPY --from=pg10-builder /usr/local/bin/pg_dump /usr/local/pgsql-10/
-COPY --from=pg10-builder /usr/local/bin/pg_dumpall /usr/local/pgsql-10/
-COPY --from=pg10-builder /usr/local/bin/pg_restore /usr/local/pgsql-10/
-COPY --from=pg10-builder /usr/local/bin/psql /usr/local/pgsql-10/
-
-COPY --from=pg11-builder /usr/local/bin/pg_dump /usr/local/pgsql-11/
-COPY --from=pg11-builder /usr/local/bin/pg_dumpall /usr/local/pgsql-11/
-COPY --from=pg11-builder /usr/local/bin/pg_restore /usr/local/pgsql-11/
-COPY --from=pg11-builder /usr/local/bin/psql /usr/local/pgsql-11/
-
-WORKDIR /pgadmin4
-ENV PYTHONPATH=/pgadmin4
-
-#Copy in the docs and JS/CSS bundles
-COPY --from=node-builder /pgadmin4/web/pgadmin/static/js/generated/ /pgadmin4/pgadmin/static/js/generated/
-COPY --from=docs-builder /pgadmin4/docs/en_US/_build/html/ /pgadmin4/docs/
-
-# Install build-dependencies, build & install C extensions and purge deps in one RUN step
-# so that deps do not increase the size of resulting image by remaining in layers
-COPY ./pgadmin4/requirements.txt /pgadmin4
-RUN apk add --no-cache --virtual build-deps build-base postgresql-dev libffi-dev linux-headers && \
-    apk add postfix postgresql-client postgresql-libs && \
-    pip install --upgrade pip && \
-    pip install --no-cache-dir -r requirements.txt && \
-    pip install --no-cache-dir gunicorn && \
-    apk del --no-cache build-deps
-
-# Copy the code
-COPY ./pgadmin4/web /pgadmin4
-COPY ./run_pgadmin.py /pgadmin4
-COPY ./entrypoint.sh /entrypoint.sh
-
-# Precompile and optimize python code to save time and space on startup
-RUN python -O -m compileall /pgadmin4
-
-# Finish up
-VOLUME /var/lib/pgadmin
-EXPOSE 80 443
-
-ENTRYPOINT ["/entrypoint.sh"]
diff --git a/pkg/docker/README b/pkg/docker/README
index accbc48b..28a9ff90 100644
--- a/pkg/docker/README
+++ b/pkg/docker/README
@@ -1,129 +1,24 @@
-This directory contains the files required to create a docker container running pgAdmin.
+This directory contains the files required to create a docker container running
+pgAdmin.
 
 Building
 ========
 
-Whilst you can just use the Dockerfile directly, it requires that various pre-configuration steps are performed, for
-example, the pgAdmin web code must be copied to `./web`, Sphinx documentation source must be copied to `./docs`
-and `requirements.txt` is also expected to be in this directory.
+From the top level directory of the pgAdmin source tree, simply run:
 
-The recommended (and easy) way to build the container is to do:
+docker build .
 
-```console
-cd $PGADMIN_SRC/
-workon pgadmin-venv
-make docker
-```
+You can also run 'make docker', which will call 'docker build .' but also tag
+the image like:
 
-This will call the build script $PGADMIN_SRC/pkg/docker/build.sh which will prepare a staging directory containing all
-the required files, then build the container and push it to your repo.
+pgadmin4 pgadmin4:latest pgadmin4:4 pgadmin4:4.12
+
+WARNING: The build should be run in a CLEAN source tree. Whilst some potentially
+         dangerous files such as config_local.py or log files will be explicitly
+         excluded from the final image, other files will not be.
 
 Running
 =======
 
-Environment Variables
----------------------
-
-The container will accept the following variables at startup:
-
-*PGADMIN_DEFAULT_EMAIL*
-
-This is the email address used when setting up the initial administrator account
-to login to pgAdmin. This variable is required and must be set at launch time.
-
-*PGADMIN_DEFAULT_PASSWORD*
-
-This is the password used when setting up the initial administrator account to
-login to pgAdmin. This variable is required and must be set at launch time.
-
-*PGADMIN_ENABLE_TLS*
-
-Default: <null>
-
-If left un-set, the container will listen on port 80 for connections in plain
-text. If set to any value, the container will listen on port 443 for TLS
-connections.
-
-When TLS is enabled, a certificate and key must be provided. Typically these
-should be stored on the host file system and mounted from the container. The
-expected paths are /certs/server.crt and /certs/server.key
-
-*PGADMIN_LISTEN_PORT*
-
-Default: 80 or 443 (if TLS is enabled)
-
-Allows the port that the server listens on to be set to a specific value rather
-than using the default.
-
-*GUNICORN_THREADS*
-
-Default: 25
-
-Adjust the number of threads the Gunicorn server uses to handle incoming
-requests. This should typically be left as-is, except in highly loaded systems
-where it may be increased.
-
-Mapped Files and Directories
-----------------------------
-
-The following files or directories can be mapped from the container onto the
-host machine to allow configuration to be customised and shared between
-instances:
-
-*/var/lib/pgadmin*
-
-This is the working directory in which pgAdmin stores session data, user files,
-configuration files, and it's configuration database. Mapping this directory
-onto the host machine gives you an easy way to maintain configuration between
-
-invocations of the container.
-
-*/pgadmin4/config_local.py*
-
-This file can be used to override configuration settings in pgAdmin. Settings
-found in config.py can be overridden with deployment specific values if
-required.
-
-*/pgadmin4/servers.json*
-
-If this file is mapped, server definitions found in it will be loaded at launch
-time. This allows connection information to be pre-loaded into the instance of
-pgAdmin in the container.
-
-*/certs/server.cert*
-
-If TLS is enabled, this file will be used as the servers TLS certificate.
-
-*/certs/server.key*
-
-If TLS is enabled, this file will be used as the key file for the servers TLS
-certificate.
-
-Examples
---------
-
-Run a simple container over port 80:
-
-```
-    docker pull dpage/pgadmin4
-    docker run -p 80:80 \
-        -e "[email protected]" \
-        -e "PGADMIN_DEFAULT_PASSWORD=SuperSecret" \
-        -d dpage/pgadmin4
-```
-Run a TLS secured container using a shared config/storage directory in
-/private/var/lib/pgadmin on the host, and servers pre-loaded from
-/tmp/servers.json on the host:
-
-```
-    docker pull dpage/pgadmin4
-    docker run -p 443:443 \
-        -v "/private/var/lib/pgadmin:/var/lib/pgadmin" \
-        -v "/path/to/certificate.cert:/certs/server.cert" \
-        -v "/path/to/certificate.key:/certs/server.key" \
-        -v "/tmp/servers.json:/servers.json" \
-        -e "[email protected]" \
-        -e "PGADMIN_DEFAULT_PASSWORD=SuperSecret" \
-        -e "PGADMIN_ENABLE_TLS=True" \
-        -d dpage/pgadmin4
-```
+See the documentation at docs/en_US/container_deployment.rst for information on
+running the container.
diff --git a/pkg/docker/build.sh b/pkg/docker/build.sh
deleted file mode 100755
index 5cd07c97..00000000
--- a/pkg/docker/build.sh
+++ /dev/null
@@ -1,61 +0,0 @@
-#!/bin/bash
-
-########################################################################
-#
-# pgAdmin 4 - PostgreSQL Tools
-#
-# Copyright (C) 2013 - 2019, The pgAdmin Development Team
-# This software is released under the PostgreSQL Licence
-#
-#########################################################################
-
-# Runtime checks
-if [ ! -d runtime -a ! -d web ]; then
-    echo This script must be run from the top-level directory of the source tree.
-    exit 1
-fi
-
-if [ ! -d .git -a ! -f .git/config ]; then
-    echo This script must be run from a git checkout of the source tree.
-    exit 1
-fi
-
-# Get the required package info
-APP_RELEASE=`grep "^APP_RELEASE" web/config.py | cut -d"=" -f2 | sed 's/ //g'`
-APP_REVISION=`grep "^APP_REVISION" web/config.py | cut -d"=" -f2 | sed 's/ //g'`
-APP_NAME=`grep "^APP_NAME" web/config.py | cut -d"=" -f2 | sed "s/'//g" | sed 's/^ //'`
-APP_LONG_VERSION=${APP_RELEASE}.${APP_REVISION}
-APP_SHORT_VERSION=`echo ${APP_LONG_VERSION} | cut -d . -f1,2`
-APP_SUFFIX=`grep "^APP_SUFFIX" web/config.py | cut -d"=" -f2 | sed 's/ //g' | sed "s/'//g"`
-if [ ! -z ${APP_SUFFIX} ]; then
-    export APP_LONG_VERSION=${APP_LONG_VERSION}-${APP_SUFFIX}
-fi
-CONTAINER_NAME=`echo ${APP_NAME} | sed 's/ //g' | awk '{print tolower($0)}'`
-
-# Output basic details to show we're working
-echo Building Docker Container for ${APP_NAME} version ${APP_LONG_VERSION}...
-
-# Create/clearout the build directory
-echo Creating/cleaning required directories...
-if [ -d docker-build ]; then
-    rm -rf docker-build
-fi
-
-mkdir -p docker-build/pgadmin4
-
-# Build the clean tree
-echo Copying source tree...
-git archive HEAD -- docs web requirements.txt | tar xvf - -C docker-build/pgadmin4
-
-# Copy the Docker specific assets into place
-cp pkg/docker/Dockerfile \
-    pkg/docker/entrypoint.sh \
-    pkg/docker/run_pgadmin.py \
-    pkg/docker/.dockerignore \
-    docker-build/
-
-# Build the container
-docker build docker-build -t ${CONTAINER_NAME} \
-                          -t ${CONTAINER_NAME}:latest \
-                          -t ${CONTAINER_NAME}:${APP_RELEASE} \
-                          -t ${CONTAINER_NAME}:${APP_LONG_VERSION}