f$ nUdZddlZddlZddlmZddlmZmZddlm Z ddl m Z ddl m Z mZddlmZed Zd dd ed ged gedgdZe ed<eeZej(eZegdZdZdZdZdefdZdefdZdede fdZde fdZ!de fdZ"de fdZ#dZ$de%d e de d!e d"df d#Z&y)$ WireguardN)dedent)subputil)Cloud)Config) MetaSchema get_meta_doc) PER_INSTANCEaIWireguard module provides a dynamic interface for configuring Wireguard (as a peer or server) in an easy way. This module takes care of: - writing interface configuration files - enabling and starting interfaces - installing wireguard-tools package - loading wireguard kernel module - executing readiness probes What's a readiness probe? The idea behind readiness probes is to ensure Wireguard connectivity before continuing the cloud-init process. This could be useful if you need access to specific services like an internal APT Repository Server (e.g Landscape) to install/update packages. Example: An edge device can't access the internet but uses cloud-init modules which will install packages (e.g landscape, packages, ubuntu_advantage). Those modules will fail due to missing internet connection. The "wireguard" module fixes that problem as it waits until all readinessprobes (which can be arbitrary commands - e.g. checking if a proxy server is reachable over Wireguard network) are finished before continuing the cloud-init "config" stage. .. note:: In order to use DNS with Wireguard you have to install ``resolvconf`` package or symlink it to systemd's ``resolvectl``, otherwise ``wg-quick`` commands will throw an error message that executable ``resolvconf`` is missing which leads wireguard module to fail. cc_wireguardz$Module to configure Wireguard tunnelubuntu wireguarda # Configure one or more WG interfaces and provide optional readinessprobes wireguard: interfaces: - name: wg0 config_path: /etc/wireguard/wg0.conf content: | [Interface] PrivateKey = Address =
[Peer] PublicKey = Endpoint = : AllowedIPs = , , ... - name: wg1 config_path: /etc/wireguard/wg1.conf content: | [Interface] PrivateKey = Address =
[Peer] PublicKey = Endpoint = : AllowedIPs = readinessprobe: - 'systemctl restart service' - 'curl https://webhook.endpoint/example' - 'nc -zv some-service-fqdn 443' )idnametitle descriptiondistros frequencyactivate_by_schema_keysexamplesmeta)r config_pathcontenti )wg_intcg}tjt|j}|r.dj t |}|j d|t |jD]=\}}|dk(s |dk(s|dk(st|tr'|j d|d|?|r'tdttj |y ) aRValidate user-provided wg:interfaces option values. This function supplements flexible jsonschema validation with specific value checks to aid in triage of invalid user-provided configuration. @param wg_int: Dict of configuration value under 'wg:interfaces'. @raises: ValueError describing invalid values provided. z, z%Missing required wg:interfaces keys: rrrz$Expected a string for wg:interfaces:. Found z*Invalid wireguard interface configuration:N) REQUIRED_WG_INT_KEYS differencesetkeysjoinsortedappenditems isinstancestr ValueErrorNL)rerrorsmissingr#keyvalues ?/usr/lib/python3/dist-packages/cloudinit/config/cc_wireguard.pysupplemental_schema_validationr1hsF"--c&++-.@AGyy) =dVDEV\\^, U &=C=0C94DeS) :3%xwO8RWWV_r<s r0 enable_wgrEs 0&.A ##H &.9I.JK 5vf~F ##I6&>:J/KL  % %>rd3q6( K  sA6A99B/ B**B/wg_readinessprobescg}d}|D]/}t|tr|jd|d||dz }1|r'tdttj |y)zBasic validation of user-provided probes @param wg_readinessprobes: List of readinessprobe probe(s). @raises: ValueError of wrong datatype provided for probes. rz(Expected a string for readinessprobe at rz Invalid readinessProbe commands:N)r(r)r&r*r+r$)rFr,poscs r0!readinessprobe_command_validationrKs|F C !S! MM:3%xsK  1HC .rd2776?2C D  r2cDg}|D]:} tjdt|tj|dd<|r't dttj|y#tj$r }|j |d|Yd}~d}~wwxYw)zExecute provided readiness probe(s) @param wg_readinessprobes: List of readinessprobe probe(s). @raises: ProcessExecutionError for issues during execution of probes. zRunning readinessprobe: '%s'Tcaptureshellz: Nz&Failed running readinessprobe command:) r6r7r)rrDr&r;r+r$)rFr,rJr<s r0readinessproberPsF ' ' II4c!f = IIaT 2'4RD8I J  )) ' MMQCr!+ & & 's7A,,B?BBcdg}tjdrytjtkr|j d |j j |j j|y#t$rtjtdwxYw#t$rtjtdwxYw)zInstall wireguard packages and tools @param cloud: Cloud object @raises: Exception for issues during package installation. zwireguard-toolswgNrzPackage update failedz!Failed to install wireguard-tools) rwhichrkernel_versionMIN_KERNEL_VERSIONr&rBupdate_package_sourcesr:logexcr6install_packages)r>packagess r0 maybe_install_wireguard_packagesrZs""H zz$ 11 $ ++- %%h/  C01   C<= sA>"B&>%B#&%C c ~ tjddd}tjd|jj s.t j dtjdddyy#tj$r2}tjt dtt|d}~wwxYw) zYLoad wireguard kernel module @raises: ProcessExecutionError for issues modprobe lsmodTrMrzLoading wireguard kernel modulezmodprobe wireguardz Could not load wireguard module:N) rresearchstdoutstripr6r7rDrrWr+r))outr<s r0load_wireguard_kernel_modulerbs iiT:yycjj&6&6&89 II7 8 II*D E:  % % C;B4AxHI sA3A77B< -B77B<rcfgargsreturncjd}d|vrtjd|d}ntjd|yt|t|dD]$}t |t |t ||&d|vr!|d|d}t|t|ytjdy)Nrz!Found Wireguard section in configzrd wg_sectionrrFs r0handlerisJc 56%  J   %U+ "\*!&v. V &% ! J& ' ( 4'(89)*<=)* ?@r2)'__doc__loggingr]textwrapr cloudinitrrcloudinit.cloudrcloudinit.configrcloudinit.config.schemar r cloudinit.settingsr MODULE_DESCRIPTIONr__annotations__ getLogger__name__r6 frozensetr r9r+rUdictr1r=rElistrKrPrZrbr)rir2r0rzs,  !#<+!H   3%z +}   )j)V t g! !CD  4 :*d5$ $ , t *E< $A$A6$A%$At$A$Ar2