mirror of
https://github.com/containers/podman.git
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a48cd241ad
**Depends on PR 23538** CNI is no longer needed/supported. Signed-off-by: Chris Evich <cevich@redhat.com>
97 lines
3.1 KiB
Python
97 lines
3.1 KiB
Python
import configparser
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import json
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import os
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import shutil
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import subprocess
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import sys
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import tempfile
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class Podman:
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"""
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Instances hold the configuration and setup for running podman commands
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"""
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def __init__(self):
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"""Initialize a Podman instance with global options"""
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binary = os.getenv("PODMAN", "bin/podman")
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self.cmd = [binary, "--storage-driver=vfs"]
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cgroupfs = os.getenv("CGROUP_MANAGER", "systemd")
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self.cmd.append(f"--cgroup-manager={cgroupfs}")
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self.anchor_directory = tempfile.mkdtemp(prefix="podman_restapi_")
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self.cmd.append("--root=" + os.path.join(self.anchor_directory, "crio"))
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self.cmd.append("--runroot=" + os.path.join(self.anchor_directory, "crio-run"))
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os.environ["CONTAINERS_REGISTRIES_CONF"] = os.path.join(
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self.anchor_directory, "registry.conf"
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)
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p = configparser.ConfigParser()
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p.read_dict(
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{
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"registries.search": {"registries": "['quay.io']"},
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"registries.insecure": {"registries": "[]"},
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"registries.block": {"registries": "[]"},
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}
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)
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with open(os.environ["CONTAINERS_REGISTRIES_CONF"], "w") as w:
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p.write(w)
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def open(self, command, *args, **kwargs):
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"""Podman initialized instance to run a given command
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:param self: Podman instance
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:param command: podman sub-command to run
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:param args: arguments and options for command
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:param kwargs: See subprocess.Popen() for shell keyword
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:return: subprocess.Popen() instance configured to run podman instance
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"""
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cmd = self.cmd.copy()
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cmd.append(command)
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cmd.extend(args)
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shell = kwargs.get("shell", False)
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return subprocess.Popen(
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cmd,
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shell=shell,
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stdin=subprocess.DEVNULL,
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stdout=subprocess.DEVNULL,
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stderr=subprocess.DEVNULL,
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)
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def run(self, command, *args, **kwargs):
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"""Run given podman command
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:param self: Podman instance
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:param command: podman sub-command to run
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:param args: arguments and options for command
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:param kwargs: See subprocess.Popen() for shell and check keywords
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:return: subprocess.Popen() instance configured to run podman instance
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"""
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cmd = self.cmd.copy()
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cmd.append(command)
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cmd.extend(args)
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check = kwargs.get("check", False)
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shell = kwargs.get("shell", False)
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try:
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return subprocess.run(
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cmd,
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shell=shell,
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check=check,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE,
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)
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except subprocess.CalledProcessError as e:
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if e.stdout:
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sys.stdout.write("\nRun Stdout:\n" + e.stdout.decode("utf-8"))
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if e.stderr:
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sys.stderr.write("\nRun Stderr:\n" + e.stderr.decode("utf-8"))
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raise
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def tear_down(self):
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shutil.rmtree(self.anchor_directory, ignore_errors=True)
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