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Enable launches using binaries stored in a private S3 bucket
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,3 +1,5 @@ | ||
| *.signed | ||
| *.urls | ||
| *tfstate* | ||
| .cdsw | ||
| .cem | ||
|
|
||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,97 @@ | ||
| import boto3 | ||
| import json | ||
| import os | ||
| import re | ||
| import sys | ||
| from subprocess import Popen, PIPE | ||
| from tempfile import mkstemp | ||
| from botocore.exceptions import ClientError | ||
|
|
||
| S3_CLIENT = boto3.client("s3", | ||
| aws_access_key_id=os.environ.get("TF_VAR_aws_access_key_id", ""), | ||
| aws_secret_access_key=os.environ.get("TF_VAR_aws_secret_access_key", "")) | ||
|
|
||
| def create_presigned_url(bucket_name, object_name, expiration=7200): | ||
| global S3_CLIENT | ||
| response = S3_CLIENT.generate_presigned_url("get_object", | ||
| Params={"Bucket": bucket_name, | ||
| "Key": object_name}, | ||
| ExpiresIn=expiration) | ||
| return response | ||
|
|
||
| def get_file(bucket, key): | ||
| s3 = boto3.resource('s3') | ||
| _, tempfile_path = mkstemp() | ||
| try: | ||
| S3_CLIENT.download_file(bucket, key, tempfile_path) | ||
| except ClientError as exc: | ||
| if key.endswith("/manifest.json") and "Error" in exc.response and "Code" in exc.response["Error"] and exc.response["Error"]["Code"] in ["404", "403"]: | ||
| return None | ||
| raise | ||
| return open(tempfile_path, 'r').read() | ||
|
|
||
| def remove_file(file_path): | ||
| try: | ||
| os.remove(file_path) | ||
| except OSError: | ||
| pass | ||
|
|
||
| def compute_env(file_path): | ||
| command = "bash -c 'source %s && set'" % (file_path,) | ||
| proc = Popen(command, shell=True, stdout=PIPE) | ||
| stdout, _ = proc.communicate() | ||
| env = {} | ||
| for line in stdout.decode().split("\n"): | ||
| line = line.rstrip() | ||
| m = re.match(r"^([A-Za-z0-9_]*)=(s3://([^/]*)/(.*))", line) | ||
| if m: | ||
| var_name, value, bucket, key = m.groups() | ||
| env[var_name] = {"value":value, "bucket":bucket, "key":key} | ||
| return env | ||
|
|
||
| def convert_stack_file(file_path): | ||
| env = compute_env(file_path) | ||
| output_stack_path = file_path + ".signed" | ||
| remove_file(output_stack_path) | ||
| output_stack_file = open(output_stack_path, "w") | ||
| url_map = {} | ||
| converted = False | ||
| for line in open(file_path): | ||
| line = line.rstrip() | ||
| m = re.match(r"(^[^=]*)=", line) | ||
| if m: | ||
| var_name, = m.groups() | ||
| if var_name in env: | ||
| converted = True | ||
| bucket = env[var_name]["bucket"] | ||
| key = env[var_name]["key"] | ||
| main_presigned_url = create_presigned_url(bucket, key) | ||
| line = "%s=\"%s\"" % (var_name, main_presigned_url) | ||
|
|
||
| # Check for manifest.json | ||
| manifest_key = key.rstrip("/") + "/manifest.json" | ||
| manifest = get_file(bucket, manifest_key) | ||
| if manifest: | ||
| manifest_presigned_url = create_presigned_url(bucket, manifest_key) | ||
| url_map[main_presigned_url + "/manifest.json"] = manifest_presigned_url | ||
| j = json.loads(manifest) | ||
| for parcel in j["parcels"]: | ||
| parcel_key = key.rstrip("/") + "/" + parcel["parcelName"] | ||
| parcel_url = main_presigned_url + "/" + parcel["parcelName"] | ||
| parcel_presigned_url = create_presigned_url(bucket, parcel_key) | ||
| url_map[parcel_url] = parcel_presigned_url | ||
|
|
||
| output_stack_file.write(line + "\n") | ||
| output_stack_file.close() | ||
|
|
||
| output_urls_path = file_path + ".urls" | ||
| remove_file(output_urls_path) | ||
| if not converted: | ||
| remove_file(output_stack_path) | ||
| elif url_map: | ||
| output_map = open(output_urls_path, "w") | ||
| for key in url_map: | ||
| output_map.write("%s-->%s\n" % (key, url_map[key])) | ||
| output_map.close() | ||
|
|
||
| convert_stack_file(sys.argv[1]) |
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