The scripts will be uploaded and executed in the order specified. Each script is executed in isolation, so state such as variables from one script won't carry on to the next. By default this is false. By default this is just 0. For instance, setting the value to 1 results in adding this to the execute command:. By default this is as follows:.
This is a template engine. Therefore, you may use user variables and template functions in this field. In addition, you may use two extra variables:. Packer injects some environmental variables by default into the environment, as well, which are covered in the section below. In HCL templates, you can do the same thing by accessing the build variables For example:. For example:. Setting this to "none" will prevent wrapping, allowing to see exit codes on docker for windows.
Always defaults to a nearby regional or multi-regional location. Beware that this must be unique. Defaults to "n1-standard-1". All metadata configuration values are expected to be of type string. Values are files. Defaults to "default". This value is not required if a subnet is specified. Defaults to "5m". Defaults to the region hosting the specified zone. Defaults to:. Packer will search the first project ID in the list first, and fall back to the next in the list, until it finds the source image.
See Providing startup script contents directly for more details. Defaults to "3m". The wrapper ensures that the builder will not continue until the startup script has been executed. Only required if the network has been created with custom subnetting. Note, the region of the subnetwork must match the region or zone in which the VM is launched. The value should be the path of the token generator within vault. The delay is intended to protect packer from anything in the instance boot sequence that has potential to disrupt the creation of SSH configuration e.
Note: All other instance metadata, including startup scripts, are still added to the instance during it's creation. Example value: 5m. Prerequisites and limitations for using IAP:.
If left blank, Packer will choose a port for you from available ports. Default: ". Startup scripts can be a powerful tool for configuring the instance from which the image is made. The builder will wait for a startup script to terminate. Therefore, the build time will vary depending on the duration of the startup script.
Packer will check if this key is set to done and if it not set to done before the timeout, Packer will fail the build. Hey there, thanks for reaching out! Can you tell me why you sharing the IP via file? Are you using the IP inside the configure-hyperv-network. Sorry, something went wrong. Since hyper-v-ip. Let me know if it works for you! I've played around with it for a little bit but can't seem to get it to work, and I can't find many examples online. You want the build template function.
The shell-local template allows you to pass in environment variables, and you can use these env vars as template engines. Then instead of reading your IP from a file, you can use it directly from the environment in configure-hyperv-network.
I tested this with the powershell provisioner, not with the shell-local one, but I believe the concept should be almost exactly the same. Thanks SwampDragons! SwampDragons Thank you for your response! I've tried to use the example that you've given above, but it fails executing the script without any helpful error messages. New relevant packer. Forgive me if I'm just missing something really obvious.
I've only been working with Packer for a couple of weeks. This is great for catching typos and ensuring that once a build is started, that it will succeed. However, this also means that you can't generate a file during your build and then upload it using the file provisioner later. A convenient workaround is to upload a directory instead of a file. The directory still must exist, but its contents don't. You can write your generated file to the directory during the Packer run, and have it be uploaded later.
The behavior when uploading symbolic links depends on the communicator. The Docker communicator will preserve symlinks, but all other communicators will treat local symlinks as regular files.
If you wish to preserve symlinks when uploading, it's recommended that you use tar. Below is an example of what that might look like:. Because of the way our WinRM transfers works, it can take a very long time to upload and download even moderately sized files. If you're experiencing slowness using the file provisioner on Windows, it's suggested that you set up an SSH server and use the ssh communicator.
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