Docker bootstrap script

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Learn more about clone URLs. Download ZIP. Docker-compose bootstrap. Exit from the bootstrap. It won't be present if the host isn't using the SSH protocol if [[! Fig elif [[! Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment. You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window. Causes this script to exit if a variable isn't present.

These functions are used throughout the bootstrap. Shows the command being run, and runs it.

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Shows the command about to be run, and exits if it fails. Show an error and exit. Run a hook script. Print to the screen we're going to run the hook.

Run the hook. When in debug mode, show that we've skipped a hook. Come up with the paths used throughout the bootstrap. Come up with the place that the repository will be checked out to. Creates the build folder and makes sure we're running the. If the user has specificed their own checkout hook.

If enabled, automatically run an ssh-keyscan on the git ssh host, to prevent. Only bother running the keyscan if the SSH host has been provided by.

docker bootstrap script

It won't be present if the host isn't using the SSH protocol.Below you can find details on how to install BookStack on your own hosting. There are a number of installation options available depending on your setup.

BookStack does not currently support shared PHP hosting. There are too many differences between shared hosting providers and too many limitations to support the current install process although we would like to make this easier in the future. Beware that modifying the application source files or applying large work-arounds could lead to security or stability issues.

This project currently uses the release branch of the BookStack GitHub repository as a stable channel for providing updates. The installation is currently somewhat complicated and will be made simpler in future releases. Some PHP or Laravel experience will make this easier. Community docker setups are available for those that would prefer to use a containerised version of BookStack:.

A script to install BookStack on a fresh instance of Ubuntu It also does not set up mail settings or configure system security so you will have to do those separately. Link to installation script. Admin Documentation. Installation Below you can find details on how to install BookStack on your own hosting. Manual Installation Ensure the above requirements are met before installing. Clone the release branch of the BookStack GitHub repository into a folder. Ensure you have read the above information about what this script does before executing these commands.

Edit this Page.Starburst Kubernetes integration allows adding a bootstrap script to the Presto Kubernetes pods. This additional bootstrap script support is available to allow user defined actions to be performed on the Presto nodes coordinators and workers upon node startup.

The script is executed after Presto configuration setup, but before starting the Presto server. This property should be a YAML fragment which defines a volume. Any volume type can be used, see the list of Kubernetes Volumes The volume is required to have a bootstrap.

This volume will be mounted in all the Presto pods. If bootstrap. For example, the additionalBootstrapScriptVolume could be specified as a ConfigMap volume by configuring the Presto Kubernetes resource like this:. This assumes the ConfigMap already exists. It could be as simple as creating this Kubernetes resource:. Note : The custom bootstrap script volume, can be any volume type supported by Kubernetesthe ConfigMap mentioned above is just an example use case. Note : It is also possible to mount multiple bootstrap script volumes via the additionalBootstrapScriptVolumes property.

Bootstrap scripts are applied in the order they are defined in additionalBootstrapScriptVolumes. The Custom Bootstrap Script script mechanism, is a lighter, built-in way to customize the default Presto pod, without the need to build a separate custom Presto Docker image, it should suffice for most extension needs.

However if you need to do more extensive changes to the underlying node, it is possible to build custom Presto Docker images used by Presto cluster. This allows you to to extend Presto with additional features, which are not supported by default, or otherwise modify the Presto nodes. In order to build custom Presto Docker images you must create a Docker image that is based on the Starburst Enterprise Presto Kubernetes Docker image, e.

Your custom steps should be executed after Presto is autoconfigured by presto-autoconfigure program, in addition to or instead of the additional bootstrap script handling. Once you have built your custom Presto Docker image, you can use it within Presto cluster by specifying image section of Presto Kubernetes resource, e.

Starburst Enterprise Presto. Overview 2.If you've got a moment, please tell us what we did right so we can do more of it. Thanks for letting us know this page needs work. We're sorry we let you down. If you've got a moment, please tell us how we can make the documentation better. When you launch an Amazon ECS container instance, you have the option of passing user data to the instance. The data can be used to perform common automated configuration tasks and even run scripts when the instance boots.

You can pass multiple types of user data to Amazon EC2, including cloud boothooks, shell scripts, and cloud-init directives. For more information about these and other format types, see the Cloud-Init documentation. You can specify this configuration data at launch with Amazon EC2 user data. To set only a single agent configuration variable, such as the cluster name, use echo to copy the variable to the configuration file:.

This format writes everything between the lines beginning with cat and EOF to the configuration file. You can specify Docker daemon configuration information with Amazon EC2 user data, but this configuration data must be written before the Docker daemon starts.

Docker - Demo CMD vs ENTRYPOINT

The cloud-boothook user data format executes earlier in the boot process than a user data shell script. For more information about configuration options, see the Docker daemon documentation. By default, cloud-boothook user data is run at every instance boot, so you must create a mechanism to prevent the boothook from running multiple times.

docker bootstrap script

The cloud-init-per utility is provided to control boothook frequency in this manner. For more information, see cloud-init-per Utility. To write multiple lines to a file, use the following heredoc format to accomplish the same goal:. The cloud-init-per utility is provided by the cloud-init package to help you create boothook commands for instances that run at a specified frequency. Specify once to never run again, even with a new instance ID. Specify instance to run on the first boot for each new instance launch.

For example, if you create an AMI from the instance after the boothook has run, it still runs again on subsequent instances launched from that AMI.Get the latest tutorials on SysAdmin and open source topics. Write for DigitalOcean You get paid, we donate to tech non-profits.

DigitalOcean Meetups Find and meet other developers in your city. Become an author. This tutorial will walk you through creating an application image for a static website that uses the Express framework and Bootstrap. You will then build a container using that image, push it to Docker Huband use it to build another container, demonstrating how you can recreate and scale your application.

For a more detailed version of this tutorial, with more detailed explanations of each step, please refer to How To Build a Node. Next, create a package. Add the following information about the project to the file; be sure to replace the author information with your own name and contact details:. Create the views directory:. Add the following code to the file, which will import Boostrap and create a jumbotron component with a link to the more detailed sharks. Add the following code, which imports Bootstrap and the custom style sheet and offers users detailed information about certain sharks:.

Open the style sheet and add the following code, which will set the desired color and font for our pages:. You will see the following landing page:. Click on the Get Shark Info button. You will see the following information page:. You now have an application up and running. This Dockerfile uses an alpine base image and ensures that application files are owned by the non-root node user that is provided by default by the Docker Node image. Next, add your local node modules, npm logs, Dockerfile, and.

Build the application image using the docker build command:. Inspect the list of your running containers with docker ps :. You will see your application landing page once again:. Now that you have created an image for your application, you can push it to Docker Hub for future use. If you would like, you can test the utility of the image registry by destroying your current application container and image and rebuilding them. Remove the stopped container and all of the images, including unused or dangling images, with the following command:.

With all of your images and containers deleted, you can now pull the application image from Docker Hub:. You can also look at the longer series on From Containers to Kubernetes with Node.

Additionally, see our full library of Docker resources for more on Docker. Having both the frontend and backend together like this reduces the effort it takes to make a web server. In this tutorial, you will learn how to build web servers using the http module that's included in Node.

In this guide, we will show you three different ways of getting Node.Before starting, install Compose. Start by setting up the files needed to build the app. The app will run inside a Docker container containing its dependencies. Defining dependencies is done using a file called Dockerfile.

To begin with, the Dockerfile consists of:. For more information on how to write Dockerfiles, see the Docker user guide and the Dockerfile reference.

Next, create a bootstrap Gemfile which just loads Rails. Create an empty Gemfile.

docker bootstrap script

Next, provide an entrypoint script to fix a Rails-specific issue that prevents the server from restarting when a certain server. This script will be executed every time the container gets started. Finally, docker-compose. Tip : You can use either a. With those files in place, you can now generate the Rails skeleton app using docker-compose run :. First, Compose builds the image for the web service using the Dockerfile. Then it runs rails new inside a new container, using that image. If you are running Docker on Linux, the files rails new created are owned by root.

This happens because the container runs as the root user. If this is the case, change the ownership of the new files. If you are running Docker on Mac or Windows, you should already have ownership of all files, including those generated by rails new. By default, Rails expects a database to be running on localhost - so you need to point it at the db container instead. You also need to change the database and username to align with the defaults set by the postgres image. To stop the application, run docker-compose down in your project directory.

You can use the same terminal window in which you started the database, or another one where you have access to a command prompt. This is a clean way to stop the application. To restart the application run docker-compose up in the project directory.

If you make changes to the Gemfile or the Compose file to try out some different configurations, you need to rebuild. Some changes require only docker-compose up --buildbut a full rebuild requires a re-run of docker-compose run web bundle install to sync changes in the Gemfile. Here is an example of the first case, where a full rebuild is not necessary.

Suppose you simply want to change the exposed port on the local host from in our first example to Make the change to the Compose file to expose port on the container through a new port,on the host, and save the changes:. Now, rebuild and restart the app with docker-compose up --build.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. The dark mode beta is finally here. Change your preferences any time.

Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I'm trying to run a script during my building process in my Dockerfile.

But it doesn't seems to work. RUN means it creates an intermediate container, runs the script and freeze the new state of that container in a new intermediate image. The script won't be run after that: your final image is supposed to reflect the result of that script.

It should also start with a shebang like! Add to your Dockerfile :. By default many editors in Windows will convert Unix line endings to Windows format and Linux will not recognize shebang! So Linux will produce the error message like if there is no shebang. Learn more.

Quickstart: Compose and Rails

Run a script in Dockerfile Ask Question. Asked 4 years, 3 months ago. Active 1 year, 5 months ago. Viewed k times. Do you know how to do it?

Kevin Kevin 2, 1 1 gold badge 18 18 silver badges 47 47 bronze badges. Does bootstarp. With "does not work", what exactly is happening? Does it show an error? Is the file present inside the image? If you docker exec -it symfony bash inside the container, can you manually run the script, and check its contents?

Ermahgerd bootstarp! Active Oldest Votes. Christian VonC VonC k gold badges silver badges bronze badges. Also, you might have meant bootstrap. The shebang on the first line did it for me, thanks! Then you can make line endings visible by pressing Ctrl-R, Ctrl-W. VeganHunter VeganHunter 2, 2 2 gold badges 14 14 silver badges 19 19 bronze badges. Wow, u saved my day.

Thank you for this. Nov 2 '18 at The docker build was failing because of some random characters. I changed the settings in VS Code and it immediately started to work. I've upvoted.