Generate an ENVKEY and make it available to your container as an environment variable.
For a server environment where your platform runs the Docker container for you, either set an environment variable for your
ENVKEYat the platform level, and make sure it's exposed to your container when it's run, or even better, if your platform offers secrets management, create a secret for your
ENVKEYthen expose the secret as an environment variable to your container.
For a local development environment or a server environment where you execute
docker runyourself, you can pass the
docker runto make it available:
$ docker run -e "ENVKEY=$ENVKEY" .
You can also use a .env file and pass that to
docker run. For example, when you generate a local development
ENVKEY in the EnvKey UI, you'll see something like this:
Depending on where you put your
ENVKEY in a file, you can pass it to
docker run like this:
$ docker run --env-file $HOME/.envkey/apps/285e21a7-93c4-48c5-9c14-e23454e4f7a5.env
Yet another option is to mount the .env file into your container at either one of the locations shown in the
Don't check it in!
However you make your
ENVKEYavailable, make sure you don't check it into version control.
In your Dockerfile, install envkey-source and use it to execute process(es) with your EnvKey config:
FROM node:16-alpine WORKDIR /usr/src/app # Install envkey-source: # # --> Install required dependencies (adapt to your distro) RUN apk --no-cache add curl bash # # --> For an Ubuntu-based image: # RUN apt-get update && apt-get -y curl # # --> Install latest version (replace VERSION=... below to pin a version) RUN VERSION=$(curl https://envkey-releases.s3.amazonaws.com/latest/envkeysource-version.txt) \ && curl -s https://envkey-releases.s3.amazonaws.com/envkeysource/release_artifacts/$VERSION/install.sh | bash # Install app dependencies COPY package*.json ./ RUN npm ci --only=production # Copy files COPY server.js server.js # Expose port EXPOSE 8081 # Start app with latest environment, with automatic rolling reloads enabled CMD envkey-source -w --rolling -- node server.js # Use the `es` command to type a bit less # CMD es -w --rolling -- node server.js # To instead run a custom command on reload, use the -r flag. # CMD es -r ./reloaded-env.sh --rolling -- node server.js # You can also use the -w and -r flags together to auto-restart *and* run a custom command: # CMD es -w -r ./reloaded-env.sh --rolling -- node server.js # Or to restart manually after an update, just: # CMD es -- node server.js
Updated 9 months ago