Revision 64b0309a src/Ganeti/Query/Server.hs

b/src/Ganeti/Query/Server.hs
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            , ("master_netmask", showJSON $ clusterMasterNetmask cluster)
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            , ("use_external_mip_script",
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               showJSON $ clusterUseExternalMipScript cluster)
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            , ("volume_group_name", showJSON $ clusterVolumeGroupName cluster)
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            , ("volume_group_name",
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               maybe JSNull showJSON (clusterVolumeGroupName cluster))
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            , ("drbd_usermode_helper",
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               maybe JSNull showJSON (clusterDrbdUsermodeHelper cluster))
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            , ("file_storage_dir", showJSON $ clusterFileStorageDir cluster)

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