Added support for .env file in local source directory

The .env file is simply "sourced" from inside the container,
prior to launching the compiled DBHub.io daemons.

This allows for setting environment variable overrides (eg
SMTP2GO_API_KEY), without them being captured into git.

Example:

    export SMTP2GO_API_KEY=your_test_key_here

Author: justinclift

.gitignore

@@ -53,3 +53,6 @@ webui/js/dbhub.js*
 webui/js/auth.js
 webui/js/db-header.js
 webui/js/markdown-editor.js
+
+# Local secrets
+.env

docker/Dockerfile

@@ -96,9 +96,9 @@ RUN GOBIN=/usr/local/bin go install github.com/go-delve/delve/cmd/dlv@latest
 # Add script pieces for starting DBHub.io services
 # Note that we only background the webui and api daemons.  The db4s daemon is left running, to prevent start.sh from exiting
 RUN echo "echo 127.0.0.1 docker-dev.dbhub.io docker-dev >> /etc/hosts" >> /usr/local/bin/start.sh && \
-    echo "su - dbhub -c 'CONFIG_FILE=${CONFIG_FILE} /usr/local/bin/dbhub-webui >>/home/dbhub/output.log 2>&1 &'" >> /usr/local/bin/start.sh && \
-    echo "su - dbhub -c 'CONFIG_FILE=${CONFIG_FILE} /usr/local/bin/dbhub-api >>/home/dbhub/output.log 2>&1 &'" >> /usr/local/bin/start.sh && \
-    echo "su - dbhub -c 'CONFIG_FILE=${CONFIG_FILE} /usr/local/bin/dbhub-db4s >>/home/dbhub/output.log 2>&1 &'" >> /usr/local/bin/start.sh && \
+    echo "su - dbhub -c 'if [ -f "${DBHUB_SOURCE}/.env" ]; then source ${DBHUB_SOURCE}/.env; fi; CONFIG_FILE=${CONFIG_FILE} /usr/local/bin/dbhub-webui >>/home/dbhub/output.log 2>&1 &'" >> /usr/local/bin/start.sh && \
+    echo "su - dbhub -c 'if [ -f "${DBHUB_SOURCE}/.env" ]; then source ${DBHUB_SOURCE}/.env; fi; CONFIG_FILE=${CONFIG_FILE} /usr/local/bin/dbhub-api >>/home/dbhub/output.log 2>&1 &'" >> /usr/local/bin/start.sh && \
+    echo "su - dbhub -c 'if [ -f "${DBHUB_SOURCE}/.env" ]; then source ${DBHUB_SOURCE}/.env; fi; CONFIG_FILE=${CONFIG_FILE} /usr/local/bin/dbhub-db4s >>/home/dbhub/output.log 2>&1 &'" >> /usr/local/bin/start.sh && \
     echo "while :; do" >> /usr/local/bin/start.sh && \
     echo "  sleep 5" >> /usr/local/bin/start.sh && \
     echo "done" >> /usr/local/bin/start.sh
@@ -129,9 +129,9 @@ RUN echo "# Kill the existing running daemons" >> /usr/local/bin/restart.sh && \
     echo "if [ -c /dev/console ]; then" >> /usr/local/bin/restart.sh && \
     echo "  chmod o+w /dev/console" >> /usr/local/bin/restart.sh && \
     echo "fi" >> /usr/local/bin/restart.sh && \
-    echo "su - dbhub -c 'CONFIG_FILE=/dbhub.io/docker/config.toml nohup /usr/local/bin/dbhub-webui >>/home/dbhub/output.log 2>&1 &'" >> /usr/local/bin/restart.sh && \
-    echo "su - dbhub -c 'CONFIG_FILE=/dbhub.io/docker/config.toml nohup /usr/local/bin/dbhub-api >>/home/dbhub/output.log 2>&1 &'" >> /usr/local/bin/restart.sh && \
-    echo "su - dbhub -c 'CONFIG_FILE=/dbhub.io/docker/config.toml nohup /usr/local/bin/dbhub-db4s >>/home/dbhub/output.log 2>&1 &'" >> /usr/local/bin/restart.sh && \
+    echo "su - dbhub -c 'if [ -f "${DBHUB_SOURCE}/.env" ]; then source ${DBHUB_SOURCE}/.env; fi; CONFIG_FILE=${CONFIG_FILE} nohup /usr/local/bin/dbhub-webui >>/home/dbhub/output.log 2>&1 &'" >> /usr/local/bin/restart.sh && \
+    echo "su - dbhub -c 'if [ -f "${DBHUB_SOURCE}/.env" ]; then source ${DBHUB_SOURCE}/.env; fi; CONFIG_FILE=${CONFIG_FILE} nohup /usr/local/bin/dbhub-api >>/home/dbhub/output.log 2>&1 &'" >> /usr/local/bin/restart.sh && \
+    echo "su - dbhub -c 'if [ -f "${DBHUB_SOURCE}/.env" ]; then source ${DBHUB_SOURCE}/.env; fi; CONFIG_FILE=${CONFIG_FILE} nohup /usr/local/bin/dbhub-db4s >>/home/dbhub/output.log 2>&1 &'" >> /usr/local/bin/restart.sh && \
     echo "" >> /usr/local/bin/restart.sh && \
     echo "# Delay long enough for the DBHub.io daemons to start" >> /usr/local/bin/restart.sh && \
     echo "sleep 1" >> /usr/local/bin/restart.sh && \
@@ -149,9 +149,9 @@ RUN echo "# Kill the existing running daemons" >> /usr/local/bin/debug.sh && \
     echo "if [ -c /dev/console ]; then" >> /usr/local/bin/debug.sh && \
     echo "  chmod o+w /dev/console" >> /usr/local/bin/debug.sh && \
     echo "fi" >> /usr/local/bin/debug.sh && \
-    echo "su - dbhub -c 'CONFIG_FILE=/dbhub.io/docker/config.toml nohup dlv --listen=:2345 --headless=true --api-version=2 --accept-multiclient exec /usr/local/bin/dbhub-webui >>/home/dbhub/output.log 2>&1 &'" >> /usr/local/bin/debug.sh && \
-    echo "su - dbhub -c 'CONFIG_FILE=/dbhub.io/docker/config.toml nohup dlv --listen=:2346 --headless=true --api-version=2 --accept-multiclient exec /usr/local/bin/dbhub-api >>/home/dbhub/output.log 2>&1 &'" >> /usr/local/bin/debug.sh && \
-    echo "su - dbhub -c 'CONFIG_FILE=/dbhub.io/docker/config.toml nohup dlv --listen=:2347 --headless=true --api-version=2 --accept-multiclient exec /usr/local/bin/dbhub-db4s >>/home/dbhub/output.log 2>&1 &'" >> /usr/local/bin/debug.sh && \
+    echo "su - dbhub -c 'if [ -f "${DBHUB_SOURCE}/.env" ]; then source ${DBHUB_SOURCE}/.env; fi; CONFIG_FILE=${CONFIG_FILE} nohup dlv --listen=:2345 --headless=true --api-version=2 --accept-multiclient exec /usr/local/bin/dbhub-webui >>/home/dbhub/output.log 2>&1 &'" >> /usr/local/bin/debug.sh && \
+    echo "su - dbhub -c 'if [ -f "${DBHUB_SOURCE}/.env" ]; then source ${DBHUB_SOURCE}/.env; fi; CONFIG_FILE=${CONFIG_FILE} nohup dlv --listen=:2346 --headless=true --api-version=2 --accept-multiclient exec /usr/local/bin/dbhub-api >>/home/dbhub/output.log 2>&1 &'" >> /usr/local/bin/debug.sh && \
+    echo "su - dbhub -c 'if [ -f "${DBHUB_SOURCE}/.env" ]; then source ${DBHUB_SOURCE}/.env; fi; CONFIG_FILE=${CONFIG_FILE} nohup dlv --listen=:2347 --headless=true --api-version=2 --accept-multiclient exec /usr/local/bin/dbhub-db4s >>/home/dbhub/output.log 2>&1 &'" >> /usr/local/bin/debug.sh && \
     echo "" >> /usr/local/bin/debug.sh && \
     echo "# Delay long enough for the DBHub.io daemons to start" >> /usr/local/bin/debug.sh && \
     echo "sleep 1" >> /usr/local/bin/debug.sh && \