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these changes were generated with nixq 0.0.2, by running nixq ">> lib.mdDoc[remove] Argument[keep]" --batchmode nixos/**.nix nixq ">> mdDoc[remove] Argument[keep]" --batchmode nixos/**.nix nixq ">> Inherit >> mdDoc[remove]" --batchmode nixos/**.nix two mentions of the mdDoc function remain in nixos/, both of which are inside of comments. Since lib.mdDoc is already defined as just id, this commit is a no-op as far as Nix (and the built manual) is concerned.
297 lines
8.6 KiB
Nix
297 lines
8.6 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.virtualisation.azure.agent;
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provisionedHook = pkgs.writeScript "provisioned-hook" ''
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#!${pkgs.runtimeShell}
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/run/current-system/systemd/bin/systemctl start provisioned.target
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'';
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in
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{
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###### interface
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options.virtualisation.azure.agent = {
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enable = mkOption {
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default = false;
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description = "Whether to enable the Windows Azure Linux Agent.";
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};
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verboseLogging = mkOption {
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default = false;
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description = "Whether to enable verbose logging.";
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};
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mountResourceDisk = mkOption {
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default = true;
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description = "Whether the agent should format (ext4) and mount the resource disk to /mnt/resource.";
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};
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};
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###### implementation
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config = lib.mkIf cfg.enable {
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assertions = [{
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assertion = pkgs.stdenv.hostPlatform.isx86;
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message = "Azure not currently supported on ${pkgs.stdenv.hostPlatform.system}";
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}
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{
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assertion = config.networking.networkmanager.enable == false;
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message = "Windows Azure Linux Agent is not compatible with NetworkManager";
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}];
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boot.initrd.kernelModules = [ "ata_piix" ];
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networking.firewall.allowedUDPPorts = [ 68 ];
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environment.etc."waagent.conf".text = ''
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#
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# Microsoft Azure Linux Agent Configuration
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#
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# Enable extension handling. Do not disable this unless you do not need password reset,
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# backup, monitoring, or any extension handling whatsoever.
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Extensions.Enabled=y
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# How often (in seconds) to poll for new goal states
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Extensions.GoalStatePeriod=6
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# Which provisioning agent to use. Supported values are "auto" (default), "waagent",
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# "cloud-init", or "disabled".
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Provisioning.Agent=auto
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# Password authentication for root account will be unavailable.
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Provisioning.DeleteRootPassword=n
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# Generate fresh host key pair.
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Provisioning.RegenerateSshHostKeyPair=n
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# Supported values are "rsa", "dsa", "ecdsa", "ed25519", and "auto".
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# The "auto" option is supported on OpenSSH 5.9 (2011) and later.
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Provisioning.SshHostKeyPairType=ed25519
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# Monitor host name changes and publish changes via DHCP requests.
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Provisioning.MonitorHostName=y
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# How often (in seconds) to monitor host name changes.
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Provisioning.MonitorHostNamePeriod=30
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# Decode CustomData from Base64.
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Provisioning.DecodeCustomData=n
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# Execute CustomData after provisioning.
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Provisioning.ExecuteCustomData=n
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# Algorithm used by crypt when generating password hash.
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#Provisioning.PasswordCryptId=6
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# Length of random salt used when generating password hash.
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#Provisioning.PasswordCryptSaltLength=10
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# Allow reset password of sys user
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Provisioning.AllowResetSysUser=n
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# Format if unformatted. If 'n', resource disk will not be mounted.
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ResourceDisk.Format=${if cfg.mountResourceDisk then "y" else "n"}
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# File system on the resource disk
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# Typically ext3 or ext4. FreeBSD images should use 'ufs2' here.
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ResourceDisk.Filesystem=ext4
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# Mount point for the resource disk
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ResourceDisk.MountPoint=/mnt/resource
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# Create and use swapfile on resource disk.
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ResourceDisk.EnableSwap=n
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# Size of the swapfile.
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ResourceDisk.SwapSizeMB=0
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# Comma-separated list of mount options. See mount(8) for valid options.
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ResourceDisk.MountOptions=None
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# Enable verbose logging (y|n)
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Logs.Verbose=${if cfg.verboseLogging then "y" else "n"}
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# Enable Console logging, default is y
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# Logs.Console=y
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# Enable periodic log collection, default is n
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Logs.Collect=n
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# How frequently to collect logs, default is each hour
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Logs.CollectPeriod=3600
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# Is FIPS enabled
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OS.EnableFIPS=n
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# Root device timeout in seconds.
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OS.RootDeviceScsiTimeout=300
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# How often (in seconds) to set the root device timeout.
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OS.RootDeviceScsiTimeoutPeriod=30
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# If "None", the system default version is used.
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OS.OpensslPath=${pkgs.openssl_3.bin}/bin/openssl
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# Set the SSH ClientAliveInterval
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# OS.SshClientAliveInterval=180
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# Set the path to SSH keys and configuration files
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OS.SshDir=/etc/ssh
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# If set, agent will use proxy server to access internet
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#HttpProxy.Host=None
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#HttpProxy.Port=None
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# Detect Scvmm environment, default is n
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# DetectScvmmEnv=n
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#
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# Lib.Dir=/var/lib/waagent
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#
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# DVD.MountPoint=/mnt/cdrom/secure
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#
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# Pid.File=/var/run/waagent.pid
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#
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# Extension.LogDir=/var/log/azure
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#
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# Home.Dir=/home
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# Enable RDMA management and set up, should only be used in HPC images
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OS.EnableRDMA=n
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# Enable checking RDMA driver version and update
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# OS.CheckRdmaDriver=y
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# Enable or disable goal state processing auto-update, default is enabled
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AutoUpdate.Enabled=n
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# Determine the update family, this should not be changed
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# AutoUpdate.GAFamily=Prod
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# Determine if the overprovisioning feature is enabled. If yes, hold extension
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# handling until inVMArtifactsProfile.OnHold is false.
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# Default is enabled
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EnableOverProvisioning=n
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# Allow fallback to HTTP if HTTPS is unavailable
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# Note: Allowing HTTP (vs. HTTPS) may cause security risks
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# OS.AllowHTTP=n
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# Add firewall rules to protect access to Azure host node services
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OS.EnableFirewall=n
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# How often (in seconds) to check the firewall rules
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OS.EnableFirewallPeriod=30
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# How often (in seconds) to remove the udev rules for persistent network interface
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# names (75-persistent-net-generator.rules and /etc/udev/rules.d/70-persistent-net.rules)
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OS.RemovePersistentNetRulesPeriod=30
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# How often (in seconds) to monitor for DHCP client restarts
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OS.MonitorDhcpClientRestartPeriod=30
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'';
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services.udev.packages = [ pkgs.waagent ];
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# Provide waagent-shipped udev rules in initrd too.
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boot.initrd.services.udev.packages = [ pkgs.waagent ];
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# udev rules shell out to chmod, cut and readlink, which are all
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# provided by pkgs.coreutils, which is in services.udev.path, but not
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# boot.initrd.services.udev.binPackages.
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boot.initrd.services.udev.binPackages = [ pkgs.coreutils ];
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networking.dhcpcd.persistent = true;
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services.logrotate = {
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enable = true;
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settings."/var/log/waagent.log" = {
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compress = true;
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frequency = "monthly";
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rotate = 6;
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};
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};
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systemd.targets.provisioned = {
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description = "Services Requiring Azure VM provisioning to have finished";
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};
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systemd.services.consume-hypervisor-entropy =
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{
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description = "Consume entropy in ACPI table provided by Hyper-V";
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wantedBy = [ "sshd.service" "waagent.service" ];
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before = [ "sshd.service" "waagent.service" ];
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path = [ pkgs.coreutils ];
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script =
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''
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echo "Fetching entropy..."
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cat /sys/firmware/acpi/tables/OEM0 > /dev/random
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'';
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serviceConfig.Type = "oneshot";
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serviceConfig.RemainAfterExit = true;
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serviceConfig.StandardError = "journal+console";
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serviceConfig.StandardOutput = "journal+console";
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};
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systemd.services.waagent = {
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wantedBy = [ "multi-user.target" ];
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after = [ "network-online.target" "sshd.service" ];
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wants = [ "network-online.target" ];
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path = [
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pkgs.e2fsprogs
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pkgs.bash
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pkgs.findutils
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pkgs.gnugrep
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pkgs.gnused
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pkgs.iproute2
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pkgs.iptables
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# for hostname
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pkgs.nettools
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pkgs.openssh
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pkgs.openssl
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pkgs.parted
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# for pidof
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pkgs.procps
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# for useradd, usermod
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pkgs.shadow
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pkgs.util-linux # for (u)mount, fdisk, sfdisk, mkswap
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# waagent's Microsoft.OSTCExtensions.VMAccessForLinux needs Python 3
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pkgs.python39
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# waagent's Microsoft.CPlat.Core.RunCommandLinux needs lsof
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pkgs.lsof
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];
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description = "Windows Azure Agent Service";
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unitConfig.ConditionPathExists = "/etc/waagent.conf";
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serviceConfig = {
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ExecStart = "${pkgs.waagent}/bin/waagent -daemon";
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Type = "simple";
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};
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};
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# waagent will generate files under /etc/sudoers.d during provisioning
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security.sudo.extraConfig = ''
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#includedir /etc/sudoers.d
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'';
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};
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}
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