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80c0adcb | 1 | [[chapter_user_management]] |
3c8533f2 | 2 | ifdef::manvolnum[] |
b2f242ab DM |
3 | pveum(1) |
4 | ======== | |
5f09af76 DM |
5 | :pve-toplevel: |
6 | ||
3c8533f2 DM |
7 | NAME |
8 | ---- | |
9 | ||
10 | pveum - Proxmox VE User Manager | |
11 | ||
12 | ||
49a5e11c | 13 | SYNOPSIS |
3c8533f2 DM |
14 | -------- |
15 | ||
16 | include::pveum.1-synopsis.adoc[] | |
17 | ||
18 | ||
19 | DESCRIPTION | |
20 | ----------- | |
21 | endif::manvolnum[] | |
3c8533f2 DM |
22 | ifndef::manvolnum[] |
23 | User Management | |
24 | =============== | |
5f09af76 | 25 | :pve-toplevel: |
194d2f29 | 26 | endif::manvolnum[] |
5f09af76 | 27 | |
3c8533f2 DM |
28 | // Copied from pve wiki: Revision as of 16:10, 27 October 2015 |
29 | ||
5462c161 WB |
30 | Proxmox VE supports multiple authentication sources, e.g. Linux PAM, |
31 | an integrated Proxmox VE authentication server, LDAP, Microsoft Active | |
32 | Directory. | |
3c8533f2 DM |
33 | |
34 | By using the role based user- and permission management for all | |
5eba0743 FG |
35 | objects (VMs, storages, nodes, etc.) granular access can be defined. |
36 | ||
3c8533f2 | 37 | |
80c0adcb | 38 | [[pveum_users]] |
c80b9ee6 WB |
39 | Users |
40 | ----- | |
41 | ||
42 | {pve} stores user attributes in `/etc/pve/user.cfg`. | |
43 | Passwords are not stored here, users are instead associated with | |
80c0adcb | 44 | <<pveum_authentication_realms,authentication realms>> described below. |
c80b9ee6 WB |
45 | Therefore a user is internally often identified by its name and |
46 | realm in the form `<userid>@<realm>`. | |
47 | ||
48 | Each user entry in this file contains the following information: | |
49 | ||
50 | * First name | |
51 | * Last name | |
52 | * E-mail address | |
53 | * Group memberships | |
54 | * An optional Expiration date | |
55 | * A comment or note about this user | |
56 | * Whether this user is enabled or disabled | |
74662f51 | 57 | * Optional two-factor authentication keys |
c80b9ee6 WB |
58 | |
59 | ||
60 | System administrator | |
61 | ~~~~~~~~~~~~~~~~~~~~ | |
62 | ||
63 | The system's root user can always log in via the Linux PAM realm and is an | |
64 | unconfined administrator. This user cannot be deleted, but attributes can | |
65 | still be changed and system mails will be sent to the email address | |
66 | assigned to this user. | |
67 | ||
68 | ||
80c0adcb | 69 | [[pveum_groups]] |
c80b9ee6 | 70 | Groups |
a10a91c2 | 71 | ------ |
c80b9ee6 WB |
72 | |
73 | Each user can be member of several groups. Groups are the preferred | |
74 | way to organize access permissions. You should always grant permission | |
75 | to groups instead of using individual users. That way you will get a | |
76 | much shorter access control list which is easier to handle. | |
77 | ||
181db098 FG |
78 | [[pveum_tokens]] |
79 | API Tokens | |
a10a91c2 | 80 | ---------- |
181db098 | 81 | |
710713ea TL |
82 | API tokens allow stateless access to most parts of the REST API by another |
83 | system, software or API client. Tokens can be generated for individual users | |
84 | and can be given separate permissions and expiration dates to limit the scope | |
85 | and duration of the access. Should the API token get compromised it can be | |
86 | revoked without disabling the user itself. | |
181db098 FG |
87 | |
88 | API tokens come in two basic types: | |
89 | ||
90 | * separated privileges: the token needs to be given explicit access with ACLs, | |
91 | its effective permissions are calculated by intersecting user and token | |
92 | permissions. | |
93 | * full privileges: the token permissions are identical to that of the | |
94 | associated user. | |
95 | ||
c6e098a2 TL |
96 | CAUTION: The token value is only displayed/returned once when the token is |
97 | generated. It cannot be retrieved again over the API at a later time! | |
181db098 FG |
98 | |
99 | To use an API token, set the HTTP header 'Authorization' to the displayed value | |
100 | of the form `PVEAPIToken=USER@REALM!TOKENID=UUID` when making API requests, or | |
101 | refer to your API client documentation. | |
c80b9ee6 | 102 | |
80c0adcb | 103 | [[pveum_authentication_realms]] |
3c8533f2 DM |
104 | Authentication Realms |
105 | --------------------- | |
106 | ||
d6614202 WB |
107 | As {pve} users are just counterparts for users existing on some external |
108 | realm, the realms have to be configured in `/etc/pve/domains.cfg`. | |
109 | The following realms (authentication methods) are available: | |
3c8533f2 DM |
110 | |
111 | Linux PAM standard authentication:: | |
470d4313 | 112 | In this case a system user has to exist (e.g. created via the `adduser` |
d6614202 WB |
113 | command) on all nodes the user is allowed to login, and the user |
114 | authenticates with their usual system password. | |
115 | + | |
3c8533f2 DM |
116 | [source,bash] |
117 | ---- | |
118 | useradd heinz | |
119 | passwd heinz | |
120 | groupadd watchman | |
121 | usermod -a -G watchman heinz | |
122 | ---- | |
123 | ||
124 | Proxmox VE authentication server:: | |
d6614202 WB |
125 | This is a unix like password store (`/etc/pve/priv/shadow.cfg`). |
126 | Password are encrypted using the SHA-256 hash method. | |
44f38275 | 127 | This is the most convenient method for small (or even medium) |
d6614202 WB |
128 | installations where users do not need access to anything outside of |
129 | {pve}. In this case users are fully managed by {pve} and are able to | |
130 | change their own passwords via the GUI. | |
131 | ||
132 | LDAP:: | |
470d4313 | 133 | It is possible to authenticate users via an LDAP server (e.g. |
d6614202 WB |
134 | openldap). The server and an optional fallback server can be |
135 | configured and the connection can be encrypted via SSL. | |
136 | + | |
137 | Users are searched under a 'Base Domain Name' (`base_dn`), with the | |
138 | user name found in the attribute specified in the 'User Attribute Name' | |
139 | (`user_attr`) field. | |
140 | + | |
141 | For instance, if a user is represented via the | |
142 | following ldif dataset: | |
143 | + | |
144 | ---- | |
145 | # user1 of People at ldap-test.com | |
146 | dn: uid=user1,ou=People,dc=ldap-test,dc=com | |
147 | objectClass: top | |
148 | objectClass: person | |
149 | objectClass: organizationalPerson | |
150 | objectClass: inetOrgPerson | |
151 | uid: user1 | |
152 | cn: Test User 1 | |
153 | sn: Testers | |
154 | description: This is the first test user. | |
155 | ---- | |
156 | + | |
157 | The 'Base Domain Name' would be `ou=People,dc=ldap-test,dc=com` and the user | |
158 | attribute would be `uid`. | |
159 | + | |
160 | If {pve} needs to authenticate (bind) to the ldap server before being | |
161 | able to query and authenticate users, a bind domain name can be | |
162 | configured via the `bind_dn` property in `/etc/pve/domains.cfg`. Its | |
163 | password then has to be stored in `/etc/pve/priv/ldap/<realmname>.pw` | |
470d4313 | 164 | (e.g. `/etc/pve/priv/ldap/my-ldap.pw`). This file should contain a |
d6614202 | 165 | single line containing the raw password. |
0fb9147a | 166 | + |
4ab527b1 TL |
167 | To verify certificates, you need to to set `capath`. You can set it either |
168 | directly to the CA certificate of your LDAP server, or to the system path | |
169 | containing all trusted CA certificates (`/etc/ssl/certs`). | |
170 | Additionally, you need to set the `verify` option, which can also be doen over | |
171 | the web interface. | |
d6614202 WB |
172 | |
173 | Microsoft Active Directory:: | |
3c8533f2 | 174 | |
d6614202 WB |
175 | A server and authentication domain need to be specified. Like with |
176 | ldap an optional fallback server, optional port, and SSL | |
177 | encryption can be configured. | |
3c8533f2 | 178 | |
a160926a DC |
179 | [[pveum_ldap_sync]] |
180 | Syncing LDAP-based realms | |
181 | ~~~~~~~~~~~~~~~~~~~~~~~~~ | |
182 | ||
41c386ba TL |
183 | [thumbnail="screenshot/gui-datacenter-realm-add-ldap.png"] |
184 | ||
f5eb2299 TL |
185 | It is possible to sync users and groups for LDAP based realms. You can use the |
186 | CLI command | |
187 | ||
188 | ---- | |
8ab21a40 | 189 | pveum realm sync <realm> |
f5eb2299 TL |
190 | ---- |
191 | or in the `Authentication` panel of the GUI. Users and groups are synced to the | |
192 | cluster-wide user configuration file `/etc/pve/user.cfg`. | |
a160926a DC |
193 | |
194 | Requirements and limitations | |
195 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | |
196 | ||
f5eb2299 TL |
197 | The `bind_dn` is used to query the users and groups. This account needs access |
198 | to all desired entries. | |
a160926a DC |
199 | |
200 | The fields which represent the names of the users and groups can be configured | |
201 | via the `user_attr` and `group_name_attr` respectively. Only entries which | |
202 | adhere to the usual character limitations of the user.cfg are synced. | |
203 | ||
204 | Groups are synced with `-$realm` attached to the name, to avoid naming | |
205 | conflicts. Please make sure that a sync does not overwrite manually created | |
206 | groups. | |
207 | ||
f5eb2299 | 208 | [[pveum_ldap_sync_options]] |
a160926a DC |
209 | Options |
210 | ^^^^^^^ | |
211 | ||
41c386ba TL |
212 | [thumbnail="screenshot/gui-datacenter-realm-add-ldap-sync-options.png"] |
213 | ||
a160926a DC |
214 | The main options for syncing are: |
215 | ||
216 | * `dry-run`: No data is written to the config. This is useful if you want to | |
217 | see which users and groups would get synced to the user.cfg. This is set | |
218 | when you click `Preview` in the GUI. | |
219 | ||
220 | * `enable-new`: If set, the newly synced users are enabled and can login. | |
221 | The default is `true`. | |
222 | ||
223 | * `full`: If set, the sync uses the LDAP Directory as a source of truth, | |
224 | overwriting information set manually in the user.cfg and deletes users | |
225 | and groups which are not present in the LDAP directory. If not set, | |
226 | only new data is written to the config, and no stale users are deleted. | |
227 | ||
228 | * `purge`: If set, sync removes all corresponding ACLs when removing users | |
229 | and groups. This is only useful with the option `full`. | |
230 | ||
231 | * `scope`: The scope of what to sync. It can be either `users`, `groups` or | |
232 | `both`. | |
233 | ||
234 | These options are either set as parameters or as defaults, via the | |
235 | realm option `sync-defaults-options`. | |
5eba0743 | 236 | |
0523992b | 237 | [[pveum_tfa_auth]] |
74662f51 | 238 | Two-factor authentication |
9e8f2770 WB |
239 | ------------------------- |
240 | ||
74662f51 | 241 | There are two ways to use two-factor authentication: |
2837cf1d | 242 | |
74662f51 OB |
243 | It can be required by the authentication realm, either via 'TOTP' |
244 | (Time-based One-Time Password) or 'YubiKey OTP'. In this case a newly | |
245 | created user needs their keys added immediately as there is no way to | |
246 | log in without the second factor. In the case of 'TOTP', users can | |
247 | also change the 'TOTP' later on, provided they can log in first. | |
2837cf1d | 248 | |
74662f51 OB |
249 | Alternatively, users can choose to opt in to two-factor authentication |
250 | via 'TOTP' later on, even if the realm does not enforce it. As another | |
251 | option, if the server has an 'AppId' configured, a user can opt into | |
252 | 'U2F' authentication, provided the realm does not enforce any other | |
253 | second factor. | |
2837cf1d | 254 | |
74662f51 | 255 | Realm enforced two-factor authentication |
2837cf1d WB |
256 | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
257 | ||
74662f51 OB |
258 | This can be done by selecting one of the available methods via the |
259 | 'TFA' dropdown box when adding or editing an Authentication Realm. | |
260 | When a realm has TFA enabled it becomes a requirement and only users | |
261 | with configured TFA will be able to login. | |
9e8f2770 WB |
262 | |
263 | Currently there are two methods available: | |
264 | ||
74662f51 OB |
265 | Time-based OATH (TOTP):: This uses the standard HMAC-SHA1 algorithm |
266 | where the current time is hashed with the user's configured key. The | |
267 | time step and password length parameters are configured. | |
9e8f2770 | 268 | + |
74662f51 OB |
269 | A user can have multiple keys configured (separated by spaces), and the keys |
270 | can be specified in Base32 (RFC3548) or hexadecimal notation. | |
9e8f2770 | 271 | + |
74662f51 OB |
272 | {pve} provides a key generation tool (`oathkeygen`) which prints out a random |
273 | key in Base32 notation which can be used directly with various OTP tools, such | |
274 | as the `oathtool` command line tool, or on Android Google Authenticator, | |
275 | FreeOTP, andOTP or similar applications. | |
9e8f2770 WB |
276 | |
277 | YubiKey OTP:: | |
278 | For authenticating via a YubiKey a Yubico API ID, API KEY and validation | |
279 | server URL must be configured, and users must have a YubiKey available. In | |
280 | order to get the key ID from a YubiKey, you can trigger the YubiKey once | |
281 | after connecting it to USB and copy the first 12 characters of the typed | |
282 | password into the user's 'Key IDs' field. | |
74662f51 | 283 | |
9e8f2770 | 284 | + |
74662f51 OB |
285 | Please refer to the https://developers.yubico.com/OTP/[YubiKey OTP] |
286 | documentation for how to use the | |
9e8f2770 | 287 | https://www.yubico.com/products/services-software/yubicloud/[YubiCloud] or |
88636df1 | 288 | https://developers.yubico.com/Software_Projects/Yubico_OTP/YubiCloud_Validation_Servers/[host |
74662f51 | 289 | your own verification server]. |
9e8f2770 | 290 | |
0523992b | 291 | [[pveum_user_configured_totp]] |
2837cf1d WB |
292 | User configured TOTP authentication |
293 | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
294 | ||
74662f51 OB |
295 | Users can choose to enable 'TOTP' as a second factor on login via the 'TFA' |
296 | button in the user list (unless the realm enforces 'YubiKey OTP'). | |
2837cf1d | 297 | |
2b59fcfb TL |
298 | [thumbnail="screenshot/gui-datacenter-users-tfa.png"] |
299 | ||
2837cf1d WB |
300 | After opening the 'TFA' window, the user is presented with a dialog to setup |
301 | 'TOTP' authentication. The 'Secret' field contains the key, which can simply be | |
302 | generated randomly via the 'Randomize' button. An optional 'Issuer Name' can be | |
303 | added to provide information to the 'TOTP' app what the key belongs to. | |
304 | Most 'TOTP' apps will show the issuer name together with the corresponding | |
305 | 'OTP' values. The user name is also included in the QR code for the 'TOTP' app. | |
306 | ||
307 | After generating a key, a QR code will be displayed which can be used with most | |
308 | OTP apps such as FreeOTP. Now the user needs to verify both the current user | |
309 | password (unless logged in as 'root'), as well as the ability to correctly use | |
310 | the 'TOTP' key by typing the current 'OTP' value into the 'Verification Code' | |
311 | field before pressing the 'Apply' button. | |
312 | ||
97d63abc | 313 | [[pveum_configure_u2f]] |
2837cf1d WB |
314 | Server side U2F configuration |
315 | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
316 | ||
317 | To allow users to use 'U2F' authentication, the server needs to have a valid | |
318 | domain with a valid https certificate. Initially an 'AppId' | |
319 | footnote:[AppId https://developers.yubico.com/U2F/App_ID.html] | |
320 | needs to be configured. | |
321 | ||
322 | NOTE: Changing the 'AppId' will render all existing 'U2F' registrations | |
323 | unusable! | |
324 | ||
325 | This is done via `/etc/pve/datacenter.cfg`, for instance: | |
326 | ||
327 | ---- | |
328 | u2f: appid=https://mypve.example.com:8006 | |
329 | ---- | |
330 | ||
331 | For a single node, the 'AppId' can simply be the web UI address exactly as it | |
332 | is used in the browser, including the 'https://' and the port as shown above. | |
333 | Please note that some browsers may be more strict than others when matching | |
334 | 'AppIds'. | |
335 | ||
336 | When using multiple nodes, it is best to have a separate `https` server | |
337 | providing an `appid.json` | |
338 | footnote:[Multi-facet apps: https://developers.yubico.com/U2F/App_ID.html] | |
339 | file, as it seems to be compatible with most | |
340 | browsers. If all nodes use subdomains of the same top level domain, it may be | |
341 | enough to use the TLD as 'AppId', but note that some browsers may not accept | |
342 | this. | |
343 | ||
344 | NOTE: A bad 'AppId' will usually produce an error, but we have encountered | |
345 | situation where this does not happen, particularly when using a top level domain | |
346 | 'AppId' for a node accessed via a subdomain in Chromium. For this reason it is | |
347 | recommended to test the configuration with multiple browsers, as changing the | |
348 | 'AppId' later will render existing 'U2F' registrations unusable. | |
349 | ||
0523992b | 350 | [[pveum_user_configured_u2f]] |
2837cf1d WB |
351 | Activating U2F as a user |
352 | ~~~~~~~~~~~~~~~~~~~~~~~~ | |
353 | ||
354 | To enable 'U2F' authentication, open the 'TFA' window's 'U2F' tab, type in the | |
355 | current password (unless logged in as root), and press the 'Register' button. | |
356 | If the server is setup correctly and the browser accepted the server's provided | |
357 | 'AppId', a message will appear prompting the user to press the button on the | |
358 | 'U2F' device (if it is a 'YubiKey' the button light should be toggling off and | |
359 | on steadily around twice per second). | |
360 | ||
361 | Firefox users may need to enable 'security.webauth.u2f' via 'about:config' | |
362 | before they can use a 'U2F' token. | |
9e8f2770 | 363 | |
80c0adcb | 364 | [[pveum_permission_management]] |
04f44730 | 365 | Permission Management |
3c8533f2 DM |
366 | --------------------- |
367 | ||
04f44730 WB |
368 | In order for a user to perform an action (such as listing, modifying or |
369 | deleting a parts of a VM configuration), the user needs to have the | |
370 | appropriate permissions. | |
371 | ||
372 | {pve} uses a role and path based permission management system. An entry in | |
181db098 | 373 | the permissions table allows a user, group or token to take on a specific role |
04f44730 | 374 | when accessing an 'object' or 'path'. This means an such an access rule can |
181db098 FG |
375 | be represented as a triple of '(path, user, role)', '(path, group, |
376 | role)' or '(path, token, role)', with the role containing a set of allowed | |
377 | actions, and the path representing the target of these actions. | |
04f44730 | 378 | |
5eba0743 | 379 | |
80c0adcb | 380 | [[pveum_roles]] |
853d288b WB |
381 | Roles |
382 | ~~~~~ | |
383 | ||
384 | A role is simply a list of privileges. Proxmox VE comes with a number | |
385 | of predefined roles which satisfies most needs. | |
386 | ||
387 | * `Administrator`: has all privileges | |
388 | * `NoAccess`: has no privileges (used to forbid access) | |
389 | * `PVEAdmin`: can do most things, but miss rights to modify system settings (`Sys.PowerMgmt`, `Sys.Modify`, `Realm.Allocate`). | |
390 | * `PVEAuditor`: read only access | |
391 | * `PVEDatastoreAdmin`: create and allocate backup space and templates | |
392 | * `PVEDatastoreUser`: allocate backup space and view storage | |
393 | * `PVEPoolAdmin`: allocate pools | |
394 | * `PVESysAdmin`: User ACLs, audit, system console and system logs | |
395 | * `PVETemplateUser`: view and clone templates | |
396 | * `PVEUserAdmin`: user administration | |
397 | * `PVEVMAdmin`: fully administer VMs | |
398 | * `PVEVMUser`: view, backup, config CDROM, VM console, VM power management | |
399 | ||
400 | You can see the whole set of predefined roles on the GUI. | |
401 | ||
5e6b02ff TL |
402 | Adding new roles can be done via both GUI and the command line. |
403 | ||
404 | [thumbnail="screenshot/gui-datacenter-role-add.png"] | |
405 | For the GUI just navigate to 'Permissions -> User' Tab from 'Datacenter' and | |
406 | click on the 'Create' button, there you can set a name and select all desired | |
407 | roles from the 'Privileges' dropdown box. | |
853d288b | 408 | |
5e6b02ff TL |
409 | To add a role through the command line you can use the 'pveum' CLI tool, like |
410 | this: | |
853d288b WB |
411 | [source,bash] |
412 | ---- | |
413 | pveum roleadd PVE_Power-only -privs "VM.PowerMgmt VM.Console" | |
414 | pveum roleadd Sys_Power-only -privs "Sys.PowerMgmt Sys.Console" | |
415 | ---- | |
416 | ||
417 | ||
3c8533f2 DM |
418 | Privileges |
419 | ~~~~~~~~~~ | |
420 | ||
421 | A privilege is the right to perform a specific action. To simplify | |
422 | management, lists of privileges are grouped into roles, which can then | |
0e1fda70 WB |
423 | be used in the permission table. Note that privileges cannot directly be |
424 | assigned to users and paths without being part of a role. | |
3c8533f2 DM |
425 | |
426 | We currently use the following privileges: | |
427 | ||
428 | Node / System related privileges:: | |
429 | ||
430 | * `Permissions.Modify`: modify access permissions | |
431 | * `Sys.PowerMgmt`: Node power management (start, stop, reset, shutdown, ...) | |
432 | * `Sys.Console`: console access to Node | |
433 | * `Sys.Syslog`: view Syslog | |
ced79689 | 434 | * `Sys.Audit`: view node status/config, Corosync cluster config and HA config |
3c8533f2 DM |
435 | * `Sys.Modify`: create/remove/modify node network parameters |
436 | * `Group.Allocate`: create/remove/modify groups | |
437 | * `Pool.Allocate`: create/remove/modify a pool | |
438 | * `Realm.Allocate`: create/remove/modify authentication realms | |
439 | * `Realm.AllocateUser`: assign user to a realm | |
440 | * `User.Modify`: create/remove/modify user access and details. | |
441 | ||
442 | Virtual machine related privileges:: | |
443 | ||
444 | * `VM.Allocate`: create/remove new VM to server inventory | |
445 | * `VM.Migrate`: migrate VM to alternate server on cluster | |
446 | * `VM.PowerMgmt`: power management (start, stop, reset, shutdown, ...) | |
447 | * `VM.Console`: console access to VM | |
448 | * `VM.Monitor`: access to VM monitor (kvm) | |
449 | * `VM.Backup`: backup/restore VMs | |
450 | * `VM.Audit`: view VM config | |
451 | * `VM.Clone`: clone/copy a VM | |
452 | * `VM.Config.Disk`: add/modify/delete Disks | |
453 | * `VM.Config.CDROM`: eject/change CDROM | |
454 | * `VM.Config.CPU`: modify CPU settings | |
455 | * `VM.Config.Memory`: modify Memory settings | |
456 | * `VM.Config.Network`: add/modify/delete Network devices | |
457 | * `VM.Config.HWType`: modify emulated HW type | |
458 | * `VM.Config.Options`: modify any other VM configuration | |
459 | * `VM.Snapshot`: create/remove VM snapshots | |
460 | ||
461 | Storage related privileges:: | |
462 | ||
463 | * `Datastore.Allocate`: create/remove/modify a data store, delete volumes | |
464 | * `Datastore.AllocateSpace`: allocate space on a datastore | |
465 | * `Datastore.AllocateTemplate`: allocate/upload templates and iso images | |
466 | * `Datastore.Audit`: view/browse a datastore | |
467 | ||
5eba0743 | 468 | |
b8eeec52 WB |
469 | Objects and Paths |
470 | ~~~~~~~~~~~~~~~~~ | |
471 | ||
472 | Access permissions are assigned to objects, such as a virtual machines, | |
473 | storages or pools of resources. | |
474 | We use file system like paths to address these objects. These paths form a | |
475 | natural tree, and permissions of higher levels (shorter path) can | |
476 | optionally be propagated down within this hierarchy. | |
477 | ||
7d48940b | 478 | [[pveum_templated_paths]] |
b8eeec52 WB |
479 | Paths can be templated. When an API call requires permissions on a |
480 | templated path, the path may contain references to parameters of the API | |
481 | call. These references are specified in curly braces. Some parameters are | |
482 | implicitly taken from the API call's URI. For instance the permission path | |
483 | `/nodes/{node}` when calling '/nodes/mynode/status' requires permissions on | |
484 | `/nodes/mynode`, while the path `{path}` in a PUT request to `/access/acl` | |
485 | refers to the method's `path` parameter. | |
486 | ||
487 | Some examples are: | |
488 | ||
489 | * `/nodes/{node}`: Access to {pve} server machines | |
490 | * `/vms`: Covers all VMs | |
491 | * `/vms/{vmid}`: Access to specific VMs | |
492 | * `/storage/{storeid}`: Access to a storages | |
7d48940b | 493 | * `/pool/{poolname}`: Access to VMs part of a <<pveum_pools,pool>> |
b8eeec52 WB |
494 | * `/access/groups`: Group administration |
495 | * `/access/realms/{realmid}`: Administrative access to realms | |
496 | ||
497 | ||
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498 | Inheritance |
499 | ^^^^^^^^^^^ | |
500 | ||
5eba0743 | 501 | As mentioned earlier, object paths form a file system like tree, and |
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502 | permissions can be inherited down that tree (the propagate flag is set |
503 | by default). We use the following inheritance rules: | |
504 | ||
74936daf WB |
505 | * Permissions for individual users always replace group permissions. |
506 | * Permissions for groups apply when the user is member of that group. | |
507 | * Permissions replace the ones inherited from an upper level. | |
3c8533f2 | 508 | |
181db098 FG |
509 | Additionally, privilege separated tokens can never have a permission on any |
510 | given path that their associated user does not have. | |
5eba0743 | 511 | |
80c0adcb | 512 | [[pveum_pools]] |
3c8533f2 DM |
513 | Pools |
514 | ~~~~~ | |
515 | ||
516 | Pools can be used to group a set of virtual machines and data | |
8c1189b6 | 517 | stores. You can then simply set permissions on pools (`/pool/{poolid}`), |
3c8533f2 DM |
518 | which are inherited to all pool members. This is a great way simplify |
519 | access control. | |
520 | ||
74936daf WB |
521 | |
522 | What permission do I need? | |
523 | ~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
524 | ||
525 | The required API permissions are documented for each individual | |
526 | method, and can be found at http://pve.proxmox.com/pve-docs/api-viewer/ | |
527 | ||
528 | The permissions are specified as a list which can be interpreted as a | |
529 | tree of logic and access-check functions: | |
530 | ||
531 | `["and", <subtests>...]` and `["or", <subtests>...]`:: | |
532 | Each(`and`) or any(`or`) further element in the current list has to be true. | |
533 | ||
534 | `["perm", <path>, [ <privileges>... ], <options>...]`:: | |
7d48940b | 535 | The `path` is a templated parameter (see |
87ba80b0 | 536 | <<pveum_templated_paths,Objects and Paths>>). All (or, if the `any` |
7d48940b | 537 | option is used, any) of the listed |
74936daf WB |
538 | privileges must be allowed on the specified path. If a `require-param` |
539 | option is specified, then its specified parameter is required even if the | |
540 | API call's schema otherwise lists it as being optional. | |
541 | ||
542 | `["userid-group", [ <privileges>... ], <options>...]`:: | |
470d4313 | 543 | The caller must have any of the listed privileges on `/access/groups`. In |
74936daf WB |
544 | addition there are two possible checks depending on whether the |
545 | `groups_param` option is set: | |
546 | + | |
547 | * `groups_param` is set: The API call has a non-optional `groups` parameter | |
548 | and the caller must have any of the listed privileges on all of the listed | |
549 | groups. | |
550 | * `groups_param` is not set: The user passed via the `userid` parameter | |
551 | must exist and be part of a group on which the caller has any of the listed | |
552 | privileges (via the `/access/groups/<group>` path). | |
553 | ||
554 | `["userid-param", "self"]`:: | |
555 | The value provided for the API call's `userid` parameter must refer to the | |
556 | user performing the action. (Usually in conjunction with `or`, to allow | |
557 | users to perform an action on themselves even if they don't have elevated | |
558 | privileges.) | |
559 | ||
560 | `["userid-param", "Realm.AllocateUser"]`:: | |
561 | The user needs `Realm.AllocateUser` access to `/access/realm/<realm>`, with | |
470d4313 | 562 | `<realm>` referring to the realm of the user passed via the `userid` |
74936daf WB |
563 | parameter. Note that the user does not need to exist in order to be |
564 | associated with a realm, since user IDs are passed in the form of | |
565 | `<username>@<realm>`. | |
566 | ||
567 | `["perm-modify", <path>]`:: | |
7d48940b DM |
568 | The `path` is a templated parameter (see |
569 | <<pveum_templated_paths,Objects and Paths>>). The user needs either the | |
570 | `Permissions.Modify` privilege, or, | |
74936daf WB |
571 | depending on the path, the following privileges as a possible substitute: |
572 | + | |
573 | * `/storage/...`: additionally requires 'Datastore.Allocate` | |
574 | * `/vms/...`: additionally requires 'VM.Allocate` | |
575 | * `/pool/...`: additionally requires 'Pool.Allocate` | |
576 | + | |
577 | If the path is empty, `Permission.Modify` on `/access` is required. | |
578 | ||
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579 | Command Line Tool |
580 | ----------------- | |
581 | ||
582 | Most users will simply use the GUI to manage users. But there is also | |
87ba80b0 | 583 | a fully featured command line tool called `pveum` (short for ``**P**roxmox |
4f6e7e05 WB |
584 | **VE** **U**ser **M**anager''). Please note that all Proxmox VE command |
585 | line tools are wrappers around the API, so you can also access those | |
87ba80b0 | 586 | functions through the REST API. |
3c8533f2 DM |
587 | |
588 | Here are some simple usage examples. To show help type: | |
589 | ||
590 | [source,bash] | |
591 | pveum | |
592 | ||
593 | or (to show detailed help about a specific command) | |
594 | ||
595 | [source,bash] | |
596 | pveum help useradd | |
597 | ||
598 | Create a new user: | |
599 | ||
600 | [source,bash] | |
601 | pveum useradd testuser@pve -comment "Just a test" | |
602 | ||
603 | Set or Change the password (not all realms support that): | |
604 | ||
605 | [source,bash] | |
606 | pveum passwd testuser@pve | |
607 | ||
608 | Disable a user: | |
609 | ||
610 | [source,bash] | |
611 | pveum usermod testuser@pve -enable 0 | |
612 | ||
613 | Create a new group: | |
614 | ||
615 | [source,bash] | |
616 | pveum groupadd testgroup | |
617 | ||
618 | Create a new role: | |
619 | ||
620 | [source,bash] | |
621 | pveum roleadd PVE_Power-only -privs "VM.PowerMgmt VM.Console" | |
622 | ||
623 | ||
624 | Real World Examples | |
625 | ------------------- | |
626 | ||
5eba0743 | 627 | |
3c8533f2 DM |
628 | Administrator Group |
629 | ~~~~~~~~~~~~~~~~~~~ | |
630 | ||
631 | One of the most wanted features was the ability to define a group of | |
5eba0743 | 632 | users with full administrator rights (without using the root account). |
3c8533f2 DM |
633 | |
634 | Define the group: | |
635 | ||
636 | [source,bash] | |
637 | pveum groupadd admin -comment "System Administrators" | |
638 | ||
639 | Then add the permission: | |
640 | ||
641 | [source,bash] | |
642 | pveum aclmod / -group admin -role Administrator | |
643 | ||
644 | You can finally add users to the new 'admin' group: | |
645 | ||
646 | [source,bash] | |
647 | pveum usermod testuser@pve -group admin | |
648 | ||
649 | ||
650 | Auditors | |
651 | ~~~~~~~~ | |
652 | ||
653 | You can give read only access to users by assigning the `PVEAuditor` | |
654 | role to users or groups. | |
655 | ||
8c1189b6 | 656 | Example1: Allow user `joe@pve` to see everything |
3c8533f2 DM |
657 | |
658 | [source,bash] | |
659 | pveum aclmod / -user joe@pve -role PVEAuditor | |
660 | ||
8c1189b6 | 661 | Example1: Allow user `joe@pve` to see all virtual machines |
3c8533f2 DM |
662 | |
663 | [source,bash] | |
664 | pveum aclmod /vms -user joe@pve -role PVEAuditor | |
665 | ||
5eba0743 | 666 | |
3c8533f2 DM |
667 | Delegate User Management |
668 | ~~~~~~~~~~~~~~~~~~~~~~~~ | |
669 | ||
470d4313 | 670 | If you want to delegate user management to user `joe@pve` you can do |
3c8533f2 DM |
671 | that with: |
672 | ||
673 | [source,bash] | |
674 | pveum aclmod /access -user joe@pve -role PVEUserAdmin | |
675 | ||
8c1189b6 | 676 | User `joe@pve` can now add and remove users, change passwords and |
3c8533f2 DM |
677 | other user attributes. This is a very powerful role, and you most |
678 | likely want to limit that to selected realms and groups. The following | |
8c1189b6 FG |
679 | example allows `joe@pve` to modify users within realm `pve` if they |
680 | are members of group `customers`: | |
3c8533f2 DM |
681 | |
682 | [source,bash] | |
683 | pveum aclmod /access/realm/pve -user joe@pve -role PVEUserAdmin | |
684 | pveum aclmod /access/groups/customers -user joe@pve -role PVEUserAdmin | |
685 | ||
0abc65b0 | 686 | NOTE: The user is able to add other users, but only if they are |
8c1189b6 FG |
687 | members of group `customers` and within realm `pve`. |
688 | ||
181db098 FG |
689 | Limited API token for monitoring |
690 | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
691 | ||
692 | Given a user `joe@pve` with the PVEVMAdmin role on all VMs: | |
693 | ||
694 | [source,bash] | |
695 | pveum aclmod /vms -user joe@pve -role PVEVMAdmin | |
696 | ||
697 | Add a new API token with separate privileges, which is only allowed to view VM | |
698 | information (e.g., for monitoring purposes): | |
699 | ||
700 | [source,bash] | |
701 | pveum user token add joe@pve monitoring -privsep 1 | |
702 | pveum aclmod /vms -token 'joe@pve!monitoring' -role PVEAuditor | |
703 | ||
704 | Verify the permissions of the user and token: | |
705 | ||
706 | [source,bash] | |
707 | pveum user permissions joe@pve | |
708 | pveum user token permissions joe@pve monitoring | |
3c8533f2 DM |
709 | |
710 | Pools | |
711 | ~~~~~ | |
712 | ||
713 | An enterprise is usually structured into several smaller departments, | |
714 | and it is common that you want to assign resources to them and | |
715 | delegate management tasks. A pool is simply a set of virtual machines | |
716 | and data stores. You can create pools on the GUI. After that you can | |
717 | add resources to the pool (VMs, Storage). | |
718 | ||
719 | You can also assign permissions to the pool. Those permissions are | |
720 | inherited to all pool members. | |
721 | ||
722 | Lets assume you have a software development department, so we first | |
723 | create a group | |
724 | ||
725 | [source,bash] | |
726 | pveum groupadd developers -comment "Our software developers" | |
727 | ||
728 | Now we create a new user which is a member of that group | |
729 | ||
730 | [source,bash] | |
731 | pveum useradd developer1@pve -group developers -password | |
732 | ||
0abc65b0 | 733 | NOTE: The -password parameter will prompt you for a password |
3c8533f2 | 734 | |
8c1189b6 | 735 | I assume we already created a pool called ``dev-pool'' on the GUI. So we can now assign permission to that pool: |
3c8533f2 DM |
736 | |
737 | [source,bash] | |
738 | pveum aclmod /pool/dev-pool/ -group developers -role PVEAdmin | |
739 | ||
740 | Our software developers can now administrate the resources assigned to | |
741 | that pool. | |
742 | ||
743 | ||
744 | ifdef::manvolnum[] | |
745 | include::pve-copyright.adoc[] | |
746 | endif::manvolnum[] | |
747 |