This is designed to be run from scriptworker, but runs perfectly fine as a standalone script.
Testing takes a few steps to set up. Here's how:
To test, you will need to point at a signing server. Since production signing servers have restricted access and sensitive keys, it's easiest to point at a docker-signing-server instance locally during development.
To do so:
git clone https://github.com/escapewindow/docker-signing-server
cd docker-signing-server
# Follow ./README.md to set up and run the docker instance
Remember the path to ./fake_ca/ca.crt ; this will be the file that signingscript will use to verify the SSL connection.
First, you need python>=3.6.0.
Next, create a python35 virtualenv, and install signingscript:
# create the virtualenv in ./venv3
virtualenv3 venv3
# activate it
. venv3/bin/activate
# install signingscript from pypi
pip install signingscript
If you want to use local clones of signingscript, signtool, and/or scriptworker, you can
python setup.py develop
in each of the applicable directories after, or instead of the pip install command.
You'll need a password json file. The format is
{
"BASE_CERT_SCOPE:dep-signing": [
["IPADDRESS:PORT", "USERNAME", "PASSWORD", ["SIGNING_FORMAT1", "SIGNING_FORMAT2"...]],
["SECOND_IPADDRESS:PORT", "USERNAME", "PASSWORD", ["SIGNING_FORMAT1", "SIGNING_FORMAT2"...]],
...
],
"BASE_CERT_SCOPE:nightly-signing": [
["IPADDRESS:PORT", "USERNAME", "PASSWORD", ["SIGNING_FORMAT1", "SIGNING_FORMAT2"...]],
["SECOND_IPADDRESS:PORT", "USERNAME", "PASSWORD", ["SIGNING_FORMAT1", "SIGNING_FORMAT2"...]],
...
],
"BASE_CERT_SCOPE:release-signing": [
["IPADDRESS:PORT", "USERNAME", "PASSWORD", ["SIGNING_FORMAT1", "SIGNING_FORMAT2"...]],
["SECOND_IPADDRESS:PORT", "USERNAME", "PASSWORD", ["SIGNING_FORMAT1", "SIGNING_FORMAT2"...]],
...
]
}
This stripped down version will work with docker-signing-server:
{
"project:releng:signing:cert:dep-signing": [
["127.0.0.1:9110", "user", "pass", ["gpg"]]
]
}
The user/pass for the docker-signing-server are user and pass for super sekrit security.
The config json looks like this (comments are not valid json, but I'm inserting comments for clarity. Don't include the comments in the file!):
{
// path to the password json you created above
"signing_server_config": "/src/signing/signingscript/example_server_config.json",
// the work directory path. task.json will live here, as well as downloaded binaries
// this should be an absolute path.
"work_dir": "/src/signing/work_dir",
// the artifact directory path. the signed binaries will be copied here for scriptworker to upload
// this should be an absolute path.
"artifact_dir": "/src/signing/artifact_dir",
// the IP that docker-signing-server thinks you're coming from.
// I got this value from running `docker network inspect bridge` and using the gateway.
"my_ip": "172.17.0.1",
// how many seconds should the signing token be valid for?
"token_duration_seconds": 1200,
// the path to the docker-signing-server fake_ca cert that you generated above.
"ssl_cert": "/src/signing/docker-signing-server/fake_ca/ca.crt",
// the path to signtool in your virtualenv that you created above
"signtool": "/src/signing/venv3/bin/signtool",
// enable debug logging
"verbose": true,
// the path to zipalign. This executable is usually present in $ANDROID_SDK_LOCATION/build-tools/$ANDROID_VERSION/zipalign
"zipalign": "/absolute/path/to/zipalign",
// The host and port to use when sending metrics to datadog statsd
// Datadog's default is 8125, ours is 8135 due to a conflict with collectd
"datadog_port": 8135,
"datadog_host": "localhost"
}
If you aren't running through scriptworker, you need to manually create the directories that work_dir and artifact_dir point to. It's better to use new directories for these rather than cluttering and potentially overwriting an existing directory. Once you set up scriptworker, the work_dir and artifact_dir will be regularly wiped and recreated.
Scriptworker will expect to find a config.json for the scriptworker config, so I name the signingscript config json script_config.json. You can name it whatever you'd like.
Put the file(s) to sign somewhere where they can be reached via the web; you'll point to their URL(s) in the task.json below. Alternately, point to the artifacts of a TaskCluster task, and add the taskId to your dependencies in the task.json below.
Ordinarily, scriptworker would get the task definition from TaskCluster, and write it to a task.json in the work_dir. Since you're initially not going to run through scriptworker, you need to put this file on disk yourself.
It will look like this:
{
"created": "2016-05-04T23:15:17.908Z",
"deadline": "2016-05-05T00:15:17.908Z",
"dependencies": [
"VALID_TASK_ID"
],
"expires": "2017-05-05T00:15:17.908Z",
"extra": {},
"metadata": {
"description": "Markdown description of **what** this task does",
"name": "Example Task",
"owner": "[email protected]",
"source": "https://tools.taskcluster.net/task-creator/"
},
"payload": {
"upstreamArtifacts": [{
"taskId": "upstream-task-id1",
"taskType": "build",
"paths": ["public/artifact/path1", "public/artifact/path2"],
"formats": []
}],
"maxRunTime": 600
},
"priority": "normal",
"provisionerId": "test-dummy-provisioner",
"requires": "all-completed",
"retries": 0,
"routes": [],
"schedulerId": "-",
"scopes": [
"project:releng:signing:cert:dep-signing",
"project:releng:signing:format:gpg"
],
"tags": {},
"taskGroupId": "CRzxWtujTYa2hOs20evVCA",
"workerType": "dummy-worker-aki"
}
The important entries to edit are the upstreamArtifacts, the dependencies, and the scopes.
The upstreamArtifacts point to the file(s) to sign. Because scriptworker downloads and verifies their shas, signingscript expects to find the files under $work_dir/cot/$upstream_task_id/$path
The first scope, project:releng:signing:cert:dep-signing, matches the scope in your password json that you created. The second scope, project:releng:signing:format:gpg, specifies which signing format to use. (You can specify multiple formats by adding multiple project:releng:signing:format: scopes)
Write this to task.json in your work_dir.
You're ready to run signingscript!
signingscript CONFIG_FILE
where CONFIG_FILE is the config json you created above.
This should download the file(s) specified in the payload, download a token from the docker-signing-server, upload the file(s) to the docker-signing-server to sign, download the signed bits from the docker-signing-server, and then copy the signed bits into the artifact_dir.
Invalid json is a common error. Validate your json with this command:
python -mjson.tool JSON_FILE
Your docker-signing-server shell should be able to read the signing.log, which should help troubleshoot.
Scriptworker can deal with the TaskCluster specific parts, and run signingscript.
Follow the scriptworker readme to set up scriptworker, and use ["path/to/signingscript", "path/to/script_config.json"] as your task_script.
Make sure your work_dir and artifact_dir point to the same directories between the scriptworker config and the signingscript config!
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