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ami.go
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ami.go
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package rhel7
import (
"os"
"github.com/osbuild/images/internal/common"
"github.com/osbuild/images/pkg/arch"
"github.com/osbuild/images/pkg/customizations/fsnode"
"github.com/osbuild/images/pkg/disk"
"github.com/osbuild/images/pkg/distro"
"github.com/osbuild/images/pkg/distro/rhel"
"github.com/osbuild/images/pkg/osbuild"
"github.com/osbuild/images/pkg/rpmmd"
)
const (
ec2KernelOptions = "ro console=tty0 console=ttyS0,115200n8 net.ifnames=0 rd.blacklist=nouveau nvme_core.io_timeout=4294967295 crashkernel=auto LANG=en_US.UTF-8"
)
func mkEc2ImgTypeX86_64() *rhel.ImageType {
it := rhel.NewImageType(
"ec2",
"image.raw.xz",
"application/xz",
map[string]rhel.PackageSetFunc{
rhel.OSPkgsKey: ec2PackageSet,
},
rhel.DiskImage,
[]string{"build"},
[]string{"os", "image", "xz"},
[]string{"xz"},
)
// all RHEL 7 images should use sgdisk
it.DiskImagePartTool = common.ToPtr(osbuild.PTSgdisk)
it.Compression = "xz"
it.DefaultImageConfig = ec2ImageConfig()
it.KernelOptions = ec2KernelOptions
it.Bootable = true
it.DefaultSize = 10 * common.GibiByte
it.BasePartitionTables = ec2PartitionTables
return it
}
// default EC2 images config (common for all architectures)
func ec2ImageConfig() *distro.ImageConfig {
// systemd-firstboot on el7 does not support --keymap option
vconsoleFile, err := fsnode.NewFile("/etc/vconsole.conf", nil, nil, nil, []byte("FONT=latarcyrheb-sun16\nKEYMAP=us\n"))
if err != nil {
panic(err)
}
// This is needed to disable predictable network interface names.
// The org.osbuild.udev.rules stage can't create empty files.
udevNetNameSlotRulesFile, err := fsnode.NewFile("/etc/udev/rules.d/80-net-name-slot.rules", nil, nil, nil, []byte{})
if err != nil {
panic(err)
}
// While cloud-init does this automatically on first boot for the specified user,
// this was in the original KS.
ec2UserSudoers, err := fsnode.NewFile("/etc/sudoers.d/ec2-user", common.ToPtr(os.FileMode(0o440)), nil, nil, []byte("ec2-user\tALL=(ALL)\tNOPASSWD: ALL\n"))
if err != nil {
panic(err)
}
// The image built from the original KS has this file with this content.
hostnameFile, err := fsnode.NewFile("/etc/hostname", nil, nil, nil, []byte("localhost.localdomain\n"))
if err != nil {
panic(err)
}
return &distro.ImageConfig{
Timezone: common.ToPtr("UTC"),
TimeSynchronization: &osbuild.ChronyStageOptions{
Servers: []osbuild.ChronyConfigServer{
{
Hostname: "0.rhel.pool.ntp.org",
Iburst: common.ToPtr(true),
},
{
Hostname: "1.rhel.pool.ntp.org",
Iburst: common.ToPtr(true),
},
{
Hostname: "2.rhel.pool.ntp.org",
Iburst: common.ToPtr(true),
},
{
Hostname: "3.rhel.pool.ntp.org",
Iburst: common.ToPtr(true),
},
{
Hostname: "169.254.169.123",
Prefer: common.ToPtr(true),
Iburst: common.ToPtr(true),
Minpoll: common.ToPtr(4),
Maxpoll: common.ToPtr(4),
},
},
// empty string will remove any occurrences of the option from the configuration
LeapsecTz: common.ToPtr(""),
},
EnabledServices: []string{
"sshd",
"rsyslog",
},
DefaultTarget: common.ToPtr("multi-user.target"),
Sysconfig: []*osbuild.SysconfigStageOptions{
{
Kernel: &osbuild.SysconfigKernelOptions{
UpdateDefault: true,
DefaultKernel: "kernel",
},
Network: &osbuild.SysconfigNetworkOptions{
Networking: true,
NoZeroConf: true,
},
NetworkScripts: &osbuild.NetworkScriptsOptions{
IfcfgFiles: map[string]osbuild.IfcfgFile{
"eth0": {
Device: "eth0",
Bootproto: osbuild.IfcfgBootprotoDHCP,
OnBoot: common.ToPtr(true),
Type: osbuild.IfcfgTypeEthernet,
UserCtl: common.ToPtr(true),
PeerDNS: common.ToPtr(true),
IPv6Init: common.ToPtr(false),
},
},
},
},
},
SystemdLogind: []*osbuild.SystemdLogindStageOptions{
{
Filename: "logind.conf",
Config: osbuild.SystemdLogindConfigDropin{
Login: osbuild.SystemdLogindConfigLoginSection{
NAutoVTs: common.ToPtr(0),
},
},
},
},
CloudInit: []*osbuild.CloudInitStageOptions{
{
Filename: "00-rhel-default-user.cfg",
Config: osbuild.CloudInitConfigFile{
SystemInfo: &osbuild.CloudInitConfigSystemInfo{
DefaultUser: &osbuild.CloudInitConfigDefaultUser{
Name: "ec2-user",
},
},
},
},
{
Filename: "99-datasource.cfg",
Config: osbuild.CloudInitConfigFile{
DatasourceList: []string{
"Ec2",
"None",
},
},
},
},
Modprobe: []*osbuild.ModprobeStageOptions{
{
Filename: "blacklist-nouveau.conf",
Commands: osbuild.ModprobeConfigCmdList{
osbuild.NewModprobeConfigCmdBlacklist("nouveau"),
},
},
},
DracutConf: []*osbuild.DracutConfStageOptions{
{
Filename: "sgdisk.conf",
Config: osbuild.DracutConfigFile{
Install: []string{"sgdisk"},
},
},
},
SshdConfig: &osbuild.SshdConfigStageOptions{
Config: osbuild.SshdConfigConfig{
PasswordAuthentication: common.ToPtr(false),
},
},
Files: []*fsnode.File{
vconsoleFile,
udevNetNameSlotRulesFile,
ec2UserSudoers,
hostnameFile,
},
SELinuxForceRelabel: common.ToPtr(true),
}
}
func ec2PackageSet(t *rhel.ImageType) rpmmd.PackageSet {
return rpmmd.PackageSet{
Include: []string{
"@core",
"authconfig",
"kernel",
"yum-utils",
"cloud-init",
"dracut-config-generic",
"dracut-norescue",
"grub2",
"tar",
"rsync",
"rh-amazon-rhui-client",
"redhat-cloud-client-configuration",
"chrony",
"cloud-utils-growpart",
"gdisk",
},
Exclude: []string{
"aic94xx-firmware",
"alsa-firmware",
"alsa-lib",
"alsa-tools-firmware",
"ivtv-firmware",
"iwl1000-firmware",
"iwl100-firmware",
"iwl105-firmware",
"iwl135-firmware",
"iwl2000-firmware",
"iwl2030-firmware",
"iwl3160-firmware",
"iwl3945-firmware",
"iwl4965-firmware",
"iwl5000-firmware",
"iwl5150-firmware",
"iwl6000-firmware",
"iwl6000g2a-firmware",
"iwl6000g2b-firmware",
"iwl6050-firmware",
"iwl7260-firmware",
"libertas-sd8686-firmware",
"libertas-sd8787-firmware",
"libertas-usb8388-firmware",
"biosdevname",
"plymouth",
// NM is excluded by the original KS, but it is in the image built from it.
// "NetworkManager",
"iprutils",
// linux-firmware is uninstalled by the original KS, but it is a direct dependency of kernel,
// so we can't exclude it.
// "linux-firmware",
"firewalld",
},
}
}
func ec2PartitionTables(t *rhel.ImageType) (disk.PartitionTable, bool) {
switch t.Arch().Name() {
case arch.ARCH_X86_64.String():
return disk.PartitionTable{
UUID: "D209C89E-EA5E-4FBD-B161-B461CCE297E0",
Type: "gpt",
Size: 10 * common.GibiByte,
Partitions: []disk.Partition{
{
Size: 1 * common.MebiByte,
Bootable: true,
Type: disk.BIOSBootPartitionGUID,
UUID: disk.BIOSBootPartitionUUID,
},
{
Size: 6144 * common.MebiByte,
Type: disk.FilesystemDataGUID,
UUID: disk.RootPartitionUUID,
Payload: &disk.Filesystem{
Type: "xfs",
Label: "root",
Mountpoint: "/",
FSTabOptions: "defaults",
FSTabFreq: 0,
FSTabPassNo: 0,
},
},
},
}, true
default:
return disk.PartitionTable{}, false
}
}