4ad4da4658
Convert the hard-coded DGRAM communication to util.jsoncomm. This avoids hard-coding any IPC-details and simplifies the callers quite a bit.
94 lines
2.9 KiB
Python
Executable file
94 lines
2.9 KiB
Python
Executable file
#!/usr/bin/python3.6
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import os
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import subprocess
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import sys
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from osbuild.util import jsoncomm
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def ldconfig():
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# ld.so.conf must exist, or `ldconfig` throws a warning
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subprocess.run(["touch", "/etc/ld.so.conf"], check=True)
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subprocess.run(["ldconfig"], check=True)
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def sysusers():
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try:
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subprocess.run(["systemd-sysusers"], stdout=subprocess.PIPE, stderr=subprocess.STDOUT, check=True)
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except subprocess.CalledProcessError as error:
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sys.stderr.write(error.stdout)
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sys.exit(1)
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def tmpfiles():
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# Allow systemd-tmpfiles to return non-0. Some packages want to create
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# directories owned by users that are not set up with systemd-sysusers.
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subprocess.run(["systemd-tmpfiles", "--create"], check=False)
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def nsswitch():
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# the default behavior is fine, but using nss-resolve does not
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# necessarily work in a non-booted container, so make sure that
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# is not configured.
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try:
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os.remove("/etc/nsswitch.conf")
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except FileNotFoundError:
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pass
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def setup_stdio():
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with jsoncomm.Socket.new_client("/run/osbuild/api/osbuild") as client:
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req = {'method': 'setup-stdio'}
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client.send(req)
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msg, fds, _ = client.recv()
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for io in ['stdin', 'stdout', 'stderr']:
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target = getattr(sys, io)
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source = fds[msg[io]]
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os.dup2(source, target.fileno())
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fds.close()
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def os_release():
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"""/usr/lib/os-release doesn't exist. The `redhat-release` package
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generates `/etc/os-release directly. To work around this, do the same here.
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https://bugzilla.redhat.com/show_bug.cgi?id=1766754
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"""
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# remove the symlink that systemd-nspawn creates
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os.remove("/etc/os-release")
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with open("/etc/os-release", "w") as f:
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f.write('NAME="Red Hat Enterprise Linux"\n')
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f.write('VERSION="8.1 (Ootpa)"\n')
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f.write('ID="rhel"\n')
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f.write('ID_LIKE="fedora"\n')
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f.write('VERSION_ID="8.1"\n')
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f.write('PLATFORM_ID="platform:el8"\n')
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f.write('PRETTY_NAME="Red Hat Enterprise Linux 8.1 (Ootpa)"\n')
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f.write('ANSI_COLOR="0;31"\n')
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f.write('CPE_NAME="cpe:/o:redhat:enterprise_linux:8.1:GA"\n')
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f.write('HOME_URL="https://www.redhat.com/"\n')
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f.write('BUG_REPORT_URL="https://bugzilla.redhat.com/"\n')
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def python_alternatives():
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"""/usr/bin/python3 is a symlink to /etc/alternatives/python3, which points
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to /usr/bin/python3.6 by default. Recreate the link in /etc, so that
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shebang lines in stages and assemblers work.
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"""
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os.makedirs("/etc/alternatives", exist_ok=True)
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try:
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os.symlink("/usr/bin/python3.6", "/etc/alternatives/python3")
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except FileExistsError:
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pass
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if __name__ == "__main__":
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setup_stdio()
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ldconfig()
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sysusers()
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tmpfiles()
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nsswitch()
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os_release()
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python_alternatives()
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r = subprocess.run(sys.argv[1:], check=False)
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sys.exit(r.returncode)
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