| 1 | This is Tim Abbott's initial draft at our automatic remctl |
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| 2 | configuration. |
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| 3 | |
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| 4 | /usr/sbin/sipb-xen-remctl-update is the magic script. Run |
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| 5 | it with "all" as an argument, and it will update everything. |
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| 6 | |
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| 7 | The inputs to this system are as follows: |
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| 8 | |
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| 9 | /etc/remctl/sipb-xen-auto/acl/MACHINENAME |
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| 10 | |
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| 11 | This directory contains files named MACHINENAME for each machine. |
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| 12 | These ACL files specify who is allowed to administer the machine. You |
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| 13 | can use entries that are Kerberos principles, or entries of the form |
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| 14 | |
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| 15 | include /etc/remctl/sipb-xen-auto/moira-acl/sipb-xen |
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| 16 | |
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| 17 | to include AFS groups in ACLs. To add a new machine to the system, |
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| 18 | you simply need to create /etc/remctl/sipb-xen-auto/acl/MACHINENAME |
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| 19 | and then run |
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| 20 | |
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| 21 | /usr/sbin/sipb-xen-remctl-update all |
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| 22 | |
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| 23 | Everything else is autogenerated from that information. |
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| 24 | |
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| 25 | |
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| 26 | Other files of interest: |
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| 27 | |
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| 28 | /etc/remctl/sipb-xen-auto/auto-machine-list |
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| 29 | |
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| 30 | The list of machines that should have their remctl configuration |
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| 31 | files generated from the template. This is generated from |
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| 32 | listing /etc/remctl/sipb-xen-auto/acl/*. |
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| 33 | |
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| 34 | /etc/remctl/sipb-xen-auto/auto-moira-list |
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| 35 | |
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| 36 | The list of Athena AFS groups from which acl files should be |
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| 37 | generated. The ACL files are placed in |
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| 38 | /etc/remctl/sipb-xen-auto/moira-acl/, and named GROUPNAME. Ths list |
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| 39 | is generated by parsing the ACL files in /etc/remctl/sipb-xen-auto/acl/. |
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| 40 | |
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| 41 | |
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| 42 | This package also includes a crontab to run |
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| 43 | |
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| 44 | /usr/sbin/sipb-xen-remctl-update all |
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| 45 | |
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| 46 | every 15 minutes or so to keep our Moira mapping up to date. One can |
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| 47 | request an update of our Moira mapping for group X by running |
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| 48 | |
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| 49 | /usr/sbin/sipb-xen-remctl-update moiragroup X |
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| 50 | |
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| 51 | The web interface should probably run this when it adds a group. We |
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| 52 | may want to make this also available to users, but I've been lame. |
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| 53 | |
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| 54 | This package includes a remctl interface available to anyone to invoke |
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| 55 | the command: |
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| 56 | |
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| 57 | /usr/sbin/sipb-xen-remctl-update all |
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| 58 | |
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| 59 | using the following command from your favorite machine with remctl: |
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| 60 | |
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| 61 | remctl black-mesa.mit.edu remctl-auto-update all |
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| 62 | |
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| 63 | It requires no special permission to run; there is a potential DOS |
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| 64 | issue here, but I don't think it is serious. |
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| 65 | |
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| 66 | Thought should be put into how to ensure that the servers stay in sync. |
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