添加 mysql redis postgres 插件

plugins/postgres/.devcontainer/Dockerfile

@@ -0,0 +1,26 @@
+FROM dokku/dokku:latest
+
+RUN apt-get update
+RUN apt-get install --no-install-recommends -y build-essential file nano && \
+  apt-get clean autoclean && \
+  apt-get autoremove --yes && \
+  rm -rf /var/lib/apt/lists/* && \
+  mkdir -p /mnt/dokku/home/dokku /mnt/dokku/var/lib/dokku/config /mnt/dokku/var/lib/dokku/data /mnt/dokku/var/lib/dokku/services && \
+  chown -R dokku:dokku /mnt/dokku/home/dokku /mnt/dokku/var/lib/dokku/config /mnt/dokku/var/lib/dokku/data /mnt/dokku/var/lib/dokku/services && \
+  echo "dokku.me" > /home/dokku/VHOST
+
+ADD https://raw.githubusercontent.com/dokku/dokku/master/tests/dhparam.pem /mnt/dokku/etc/nginx/dhparam.pem
+
+COPY .devcontainer/20_init_plugin /etc/my_init.d/20_init_plugin
+COPY .devcontainer/bin/ /usr/local/bin/
+
+COPY . .
+
+RUN source /tmp/config && \
+  echo "export ${PLUGIN_DISABLE_PULL_VARIABLE}=true" > /tmp/.env && \
+  echo "export PLUGIN_NAME=${PLUGIN_COMMAND_PREFIX}" >> /tmp/.env && \
+  echo "export PLUGIN_VARIABLE=${PLUGIN_VARIABLE}" >> /tmp/.env
+
+RUN source /tmp/.env && \
+  dokku plugin:install file:///tmp --name $PLUGIN_NAME && \
+  make ci-dependencies