97 lines
3.1 KiB
Python
97 lines
3.1 KiB
Python
import os
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import shutil
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import charmhelpers.core.host as ch_host
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_IRONIC_USER = "ironic"
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_IRONIC_GROUP = "ironic"
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class PXEBootBase(object):
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TFTP_ROOT = "/tftpboot"
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HTTP_ROOT = "/httpboot"
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HTTP_SERVER_CONF = "/etc/nginx/nginx.conf"
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GRUB_DIR = os.path.join(TFTP_ROOT, "grub")
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GRUB_CFG = os.path.join(GRUB_DIR, "grub.cfg")
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MAP_FILE = os.path.join(TFTP_ROOT, "map-file")
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TFTP_CONFIG = "/etc/default/tftpd-hpa"
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# This is a file map of source to destination. The destination is
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# relative to self.TFTP_ROOT
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FILE_MAP = {
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"/usr/lib/PXELINUX/pxelinux.0": "pxelinux.0",
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"/usr/lib/syslinux/modules/bios/chain.c32": "chain.c32",
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"/usr/lib/syslinux/modules/bios/ldlinux.c32": "ldlinux.c32",
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"/usr/lib/grub/x86_64-efi-signed/grubnetx64.efi.signed": "grubx64.efi",
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"/usr/lib/shim/shimx64.efi.signed": "bootx64.efi",
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"/usr/lib/ipxe/undionly.kpxe": "undionly.kpxe",
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"/usr/lib/ipxe/ipxe.efi": "ipxe.efi",
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}
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TFTP_PACKAGES = ["tftpd-hpa"]
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TFTPD_SERVICE = "tftpd-hpa"
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PACKAGES = [
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'syslinux-common',
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'pxelinux',
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'grub-efi-amd64-signed',
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'shim-signed',
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'ipxe',
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]
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HTTPD_PACKAGES = ["nginx"]
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HTTPD_SERVICE_NAME = "nginx"
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IRONIC_USER = _IRONIC_USER
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IRONIC_GROUP = _IRONIC_GROUP
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def __init__(self, charm_config):
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self._config = charm_config
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def get_restart_map(self):
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return {
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self.TFTP_CONFIG: [self.TFTPD_SERVICE, ],
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self.MAP_FILE: [self.TFTPD_SERVICE, ],
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self.GRUB_CFG: [self.TFTPD_SERVICE, ],
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self.HTTP_SERVER_CONF: [self.HTTPD_SERVICE_NAME, ],
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}
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def determine_packages(self):
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default_packages = (
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self.PACKAGES + self.TFTP_PACKAGES + self.HTTPD_PACKAGES)
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return default_packages
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def _copy_resources(self):
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self._ensure_folders()
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for f in self.FILE_MAP:
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if os.path.isfile(f) is False:
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raise ValueError(
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"Missing required file %s. Package not installed?" % f)
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shutil.copy(
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f, os.path.join(self.TFTP_ROOT, self.FILE_MAP[f]),
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follow_symlinks=True)
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ch_host.chownr(
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self.TFTP_ROOT, _IRONIC_USER, _IRONIC_GROUP, chowntopdir=True)
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def _ensure_folders(self):
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if os.path.isdir(self.TFTP_ROOT) is False:
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os.makedirs(self.TFTP_ROOT)
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if os.path.isdir(self.HTTP_ROOT) is False:
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os.makedirs(self.HTTP_ROOT)
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if os.path.isdir(self.GRUB_DIR) is False:
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os.makedirs(self.GRUB_DIR)
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ch_host.chownr(
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self.TFTP_ROOT, _IRONIC_USER, _IRONIC_GROUP, chowntopdir=True)
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ch_host.chownr(
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self.HTTP_ROOT, _IRONIC_USER, _IRONIC_GROUP, chowntopdir=True)
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def get_pxe_config_class(charm_config):
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# We may need to make slight adjustments to package names and/or
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# configuration files, based on the version of Ubuntu we are installing
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# on. This function serves as a factory which will return an instance
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# of the proper class to the charm. For now we only have one class.
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return PXEBootBase(charm_config)
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