c1b9ea2d9c
This package allows to automatically switch to another domain, either at a given point in time or after the node was offline long enough.
68 lines
1.6 KiB
Lua
Executable File
68 lines
1.6 KiB
Lua
Executable File
#!/usr/bin/lua
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local uci = require('simple-uci').cursor()
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local unistd = require 'posix.unistd'
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local util = require 'gluon.util'
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local site = require 'gluon.site'
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-- Returns true if node was offline long enough to perform domain switch
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function switch_after_min_reached()
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if not unistd.access("/tmp/gluon_offline") then
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return false
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end
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local switch_after_sec = site.domain_switch.switch_after_offline_mins() * 60
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local current_uptime = util.get_uptime()
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if current_uptime == nil then
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return false
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end
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local f = util.readfile("/tmp/gluon_offline")
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if f == nil then
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return false
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end
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local offline_since = tonumber(f)
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local offline_time_sec = current_uptime - offline_since
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if offline_time_sec > switch_after_sec then
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return true
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end
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return false
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end
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-- Returns true in case switch time has passed
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function switch_time_passed()
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local current_time = os.time()
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local switch_time = site.domain_switch.switch_time()
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return switch_time < current_time
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end
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if site.domain_switch() == nil then
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-- Switch not applicable for current domain
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print("No domain switch defined for the current domain.")
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os.exit(0)
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end
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local current_domain = uci:get("gluon", "core", "domain")
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local target_domain = site.domain_switch.target_domain()
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if target_domain == current_domain then
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-- Current and target domain are equal
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print("Domain '" .. target_domain .. "' equals current domain.")
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os.exit(1)
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end
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if not switch_after_min_reached() and not switch_time_passed() then
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-- Neither switch-time passed nor switch_after_min reached
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os.exit(0)
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end
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uci:set("gluon", "core", "domain", target_domain)
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uci:commit("gluon")
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os.execute("gluon-reconfigure")
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os.execute("reboot")
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