܍~c7 UdZddlZddlZddlZddlZddlmZddlmZddl m Z m Z m Z ddl mZmZmZddlmZddlmZdd lmZmZdd lmZmZdd lmZd Zd ddeegeedggdZeed<eeZgdZ ej!dZ"dZ#dZ$dgZ%iZ&iZ'e D]FZ(e&)e(de#e(zdfe(de#e(zddfe(de#e(zddfie(de'e(d<GdZ*de+d ed!ed"ed#e,d$df d%Z-d&Z.d)d'e e e+fd(Z/dS)*zSSH: Configure SSH and SSH keysN)Logger)dedent)ListOptionalSequence)ssh_utilsubputil)Cloud)Config) MetaSchema get_meta_doc) ALL_DISTROSug_util) PER_INSTANCEa This module handles most configuration for SSH and both host and authorized SSH keys. Authorized Keys ^^^^^^^^^^^^^^^ Authorized keys are a list of public SSH keys that are allowed to connect to a user account on a system. They are stored in `.ssh/authorized_keys` in that account's home directory. Authorized keys for the default user defined in ``users`` can be specified using ``ssh_authorized_keys``. Keys should be specified as a list of public keys. .. note:: see the ``cc_set_passwords`` module documentation to enable/disable SSH password authentication Root login can be enabled/disabled using the ``disable_root`` config key. Root login options can be manually specified with ``disable_root_opts``. Supported public key types for the ``ssh_authorized_keys`` are: - dsa - rsa - ecdsa - ed25519 - ecdsa-sha2-nistp256-cert-v01@openssh.com - ecdsa-sha2-nistp256 - ecdsa-sha2-nistp384-cert-v01@openssh.com - ecdsa-sha2-nistp384 - ecdsa-sha2-nistp521-cert-v01@openssh.com - ecdsa-sha2-nistp521 - sk-ecdsa-sha2-nistp256-cert-v01@openssh.com - sk-ecdsa-sha2-nistp256@openssh.com - sk-ssh-ed25519-cert-v01@openssh.com - sk-ssh-ed25519@openssh.com - ssh-dss-cert-v01@openssh.com - ssh-dss - ssh-ed25519-cert-v01@openssh.com - ssh-ed25519 - ssh-rsa-cert-v01@openssh.com - ssh-rsa - ssh-xmss-cert-v01@openssh.com - ssh-xmss@openssh.com .. note:: this list has been filtered out from the supported keytypes of `OpenSSH`_ source, where the sigonly keys are removed. Please see ``ssh_util`` for more information. ``dsa``, ``rsa``, ``ecdsa`` and ``ed25519`` are added for legacy, as they are valid public keys in some old distros. They can possibly be removed in the future when support for the older distros are dropped .. _OpenSSH: https://github.com/openssh/openssh-portable/blob/master/sshkey.c Host Keys ^^^^^^^^^ Host keys are for authenticating a specific instance. Many images have default host SSH keys, which can be removed using ``ssh_deletekeys``. Host keys can be added using the ``ssh_keys`` configuration key. When host keys are generated the output of the ssh-keygen command(s) can be displayed on the console using the ``ssh_quiet_keygen`` configuration key. .. note:: when specifying private host keys in cloud-config, care should be taken to ensure that the communication between the data source and the instance is secure If no host keys are specified using ``ssh_keys``, then keys will be generated using ``ssh-keygen``. By default one public/private pair of each supported host key type will be generated. The key types to generate can be specified using the ``ssh_genkeytypes`` config flag, which accepts a list of host key types to use. For each host key type for which this module has been instructed to create a keypair, if a key of the same type is already present on the system (i.e. if ``ssh_deletekeys`` was false), no key will be generated. Supported host key types for the ``ssh_keys`` and the ``ssh_genkeytypes`` config flags are: - dsa - ecdsa - ed25519 - rsa Unsupported host key types for the ``ssh_keys`` and the ``ssh_genkeytypes`` config flags are: - ecdsa-sk - ed25519-sk cc_sshSSHzConfigure SSH and SSH keysa ssh_keys: rsa_private: | -----BEGIN RSA PRIVATE KEY----- MIIBxwIBAAJhAKD0YSHy73nUgysO13XsJmd4fHiFyQ+00R7VVu2iV9Qco ... -----END RSA PRIVATE KEY----- rsa_public: ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAGEAoPRhIfLvedSDKw7Xd ... rsa_certificate: | ssh-rsa-cert-v01@openssh.com AAAAIHNzaC1lZDI1NTE5LWNlcnQt ... dsa_private: | -----BEGIN DSA PRIVATE KEY----- MIIBxwIBAAJhAKD0YSHy73nUgysO13XsJmd4fHiFyQ+00R7VVu2iV9Qco ... -----END DSA PRIVATE KEY----- dsa_public: ssh-dsa AAAAB3NzaC1yc2EAAAABIwAAAGEAoPRhIfLvedSDKw7Xd ... dsa_certificate: | ssh-dsa-cert-v01@openssh.com AAAAIHNzaC1lZDI1NTE5LWNlcnQt ... ssh_authorized_keys: - ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAGEA3FSyQwBI6Z+nCSjUU ... - ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEA3I7VUf2l5gSn5uavROsc5HRDpZ ... ssh_deletekeys: true ssh_genkeytypes: [rsa, dsa, ecdsa, ed25519] disable_root: true disable_root_opts: no-port-forwarding,no-agent-forwarding,no-X11-forwarding allow_public_ssh_keys: true ssh_quiet_keygen: true ssh_publish_hostkeys: enabled: true blacklist: [dsa] )idnametitle descriptiondistros frequencyexamplesactivate_by_schema_keysmeta)rsadsaecdsaed25519z4^(ecdsa-sk|ed25519-sk)_(private|public|certificate)$z/etc/ssh/ssh_host_%s_keyTr_privatei_public.pub _certificatez -cert.pubz;o=$(ssh-keygen -yf "%s") && echo "$o" root@localhost > "%s"rcfgcloudlogargsreturnc X |ddrrtjdd}t j|D]=} t j|#t$rt j|d|Y:wxYwd|vr|d D]\}}|tvr7t |rd} nd} | d | |Et|d } t|d } t j| || d |vrd | i} tj| t" D]\} }||dvs | |dvrt| d t|d }}ddt$||fzg} t jdd5t)j|ddddn #1swxYwY|d|d|#t$rt j|d|d|YwxYwn>t j|dt.}tj}d|d<|D]}t4|z}tj|r-t jtj|dd|ddd|g}t jdd5 t)j|d|\}}t j|d ds1t>j !t j"|t j#d}|d!krCtj$|d!|tj%|d"tj%|d#zd$n#t(j&$r}t j"|j'(}|j)d kr>|(*d%r|d&|nt j|d'||Yd}~nd}~wwxYwdddn #1swxYwYd(|vrCt j|d(d)tV}t j|d(d*tX}ntV}tX}|rQt[|+} |j./|n%#t$rt j|d,YnwxYw taj1||j2\}}taj3|\}} t j|d-d}!t j4|d.tj5}"g}#t j|d/dr|6pg}#n|d0d1|vr|d1}$|#7|$tq|#||!|"dS#t$rt j|d2YdSwxYw)3Nssh_deletekeysTz /etc/ssh/zssh_host_*key*zFailed deleting key file %sssh_keys unsupported unrecognizedz Skipping %s ssh_keys entry: "%s"rr$HostCertificateshz-xcz/etc/ssh) recursiveF)capturezGenerated a key for z from zFailed generating a key for ssh_genkeytypesCLANGz ssh-keygenz-tz-Nz-f)r3envssh_quiet_keygenir#iz unknown keyz!ssh-keygen: unknown key type '%s'z(Failed generating key type %s to file %sssh_publish_hostkeys blacklistenabled)r<zPublishing host keys failed! disable_rootdisable_root_optsallow_public_ssh_keyszSSkipping import of publish SSH keys per config setting: allow_public_ssh_keys=Falsessh_authorized_keysz Applying SSH credentials failed!)9getospathjoinglobr del_file ExceptionlogexcitemsCONFIG_KEY_TO_FILEpattern_unsupported_config_keysmatchwarning write_filerupdate_ssh_config PRIV_TO_PUB KEY_GEN_TPL SeLinuxGuardr debugget_cfg_option_listGENERATE_KEY_NAMESenvironcopy KEY_FILE_TPLexists ensure_dirdirnameget_cfg_option_boolsysstdoutwrite decode_binary get_group_idchownchmodProcessExecutionErrorstderrlower exit_code startswithHOST_KEY_PUBLISH_BLACKLISTPUBLISH_HOST_KEYSget_public_host_keys datasourcepublish_host_keysrnormalize_users_groupsdistroextract_defaultget_cfg_option_strDISABLE_USER_OPTSget_public_ssh_keysextendapply_credentials)%rr%r&r'r(key_pthfkeyvalreasontgt_fn tgt_perms cert_config private_type public_type private_file public_filecmdgenkeyslang_ckeytypekeyfileouterrgidehost_key_blacklistpublish_hostkeyshostkeysusers_groupsuser _user_configr>r?keyscfgkeyss% 9/usr/lib/python3/dist-packages/cloudinit/config/cc_ssh.pyhandlersp  ww&&C',,{,<==7## C CA C a     C C C C!>BBBBB CSj///11 8 8JS#,,,288==,*FF+F >LLL',Q/F*3/2I OFC 3 3 3$$0&9 *;777)4):):)<)<   %L+s:..s:66"<03";/2&L |[.I IJC &zTBBB22Ic51111222222222222222 L;LLlLL    9"99*699 % 4* "$6  ""v" " G"g.Gw~~g&&  OBGOOG44 5 5 5wb$HC":>>>  #ydGGGHC3/B (();C)@)@AAA+J77Cbyy"c222%0006!159991   ,QX66<<>>C{a''CIIKK,B,B%--' "EwOOOO F##                 8$$!5 & '  &    3 & '4E  8,='2DEEE =   . .x 8 8 8 8 = = = K; < < < < < =="9#u|LL&6u==|/^TJJ  3 $h&@    #C)@$ G G ,,..4"DD II>    !C ' '/0G KK $l4EFFFFF === C;<<<<<<=sA## BB/HG( H(G, ,H/G, 0H%H76H79Q-;B>N:9Q-:Q B QQ-QQ--Q1 4Q1 "S==TT#C!XX)(X)ct|}|rtj|||r1|sd}|d|}|dd}nd}tj|d|dS)NNONEz$USERz $DISABLE_USERrootr7)options)setrsetup_user_keysreplace)rrr>r? key_prefixs rrvrvWs t99D - t,,, D&..w== ''@@   T6:>>>>>>r<cdtdg}g|rfd|DfdtjdzD}|D]i}tj|}|}|r=t |dkr*|t|ddj|S)aRead host keys from /etc/ssh/*.pub files and return them as a list. @param blacklist: List of key types to ignore. e.g. ['dsa', 'rsa'] @returns: List of keys, each formatted as a two-element tuple. e.g. [('ssh-rsa', 'AAAAB3Nz...'), ('ssh-ed25519', 'AAAAC3Nx...')] r#cg|]}|fz Sr).0key_typepublic_key_file_tmpls r z(get_public_host_keys..us.   3; H; .   rcg|]}|v| Srr)rhostfileblacklist_filess rrz(get_public_host_keys..ys.  ? * *  * * *r)*r/N)rYrFr load_filesplitlenappendtuple)r<key_list file_list file_name file_contentskey_datarrs @@rrlrlhs(4||5HO     ?H    "6"?@@I11 y11  &&((  1H )) OOE(2A2,// 0 0 0 Or)N)0__doc__rFrCrer^loggingrtextwraprtypingrrr cloudinitrr r cloudinit.cloudr cloudinit.configr cloudinit.config.schemar rcloudinit.distrosrrcloudinit.settingsrMODULE_DESCRIPTIONr__annotations__rVcompilerLrYrkrjrKrQkupdaterRstrlistrrvrlrrrrs&%% ++++++++++**********!!!!!!######<<<<<<<<22222222++++++^N   )%}  "F "U++j+++Z ,t  777","*:##* $W 00ANNN\A-u5MMM|a/555u=   L1$4!?!?!? G &'---K1K M= M=M=#(M=/5M==AM= M=M=M=M=`???"HXc]$;r