Class: OsCtld::Mount::Manager
- Inherits:
-
Object
- Object
- OsCtld::Mount::Manager
- Includes:
- Enumerable, OsCtl::Lib::Utils::Log, Lockable, Utils::SwitchUser
- Defined in:
- lib/osctld/mount/manager.rb
Instance Attribute Summary collapse
-
#ct ⇒ Object
readonly
protected
Returns the value of attribute ct.
-
#entries ⇒ Object
readonly
protected
Returns the value of attribute entries.
-
#shared_dir ⇒ Object
readonly
Returns the value of attribute shared_dir.
Class Method Summary collapse
-
.load(ct, cfg) ⇒ Object
Load mounts from config.
Instance Method Summary collapse
- #<<(mnt) ⇒ Object
-
#activate(mountpoint) ⇒ Object
Mount the directory inside the container.
- #add(mnt) ⇒ Object
-
#all_entries ⇒ Array<Mount::Entry>
Return all mount entries, including internal entries.
-
#deactivate(mountpoint) ⇒ Object
Unmount the directory from the container.
- #delete_at(mountpoint) ⇒ Object
-
#dump ⇒ Object
Dump mounts into config.
- #dup(new_ct) ⇒ Object
- #each(&block) ⇒ Object
- #find_at(mountpoint) ⇒ Object
-
#initialize(ct, entries: []) ⇒ Manager
constructor
A new instance of Manager.
-
#prune ⇒ Object
Remote temporal mounts.
- #register(mnt) ⇒ Object
- #unmount(mnt) ⇒ Object protected
Methods included from Utils::SwitchUser
Methods included from Lockable
#exclusively, included, #inclusively, #init_lock, #lock, #unlock
Constructor Details
Instance Attribute Details
#ct ⇒ Object (readonly, protected)
Returns the value of attribute ct.
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# File 'lib/osctld/mount/manager.rb', line 157 def ct @ct end |
#entries ⇒ Object (readonly, protected)
Returns the value of attribute entries.
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# File 'lib/osctld/mount/manager.rb', line 157 def entries @entries end |
#shared_dir ⇒ Object (readonly)
Returns the value of attribute shared_dir.
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# File 'lib/osctld/mount/manager.rb', line 17 def shared_dir @shared_dir end |
Class Method Details
Instance Method Details
#<<(mnt) ⇒ Object
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# File 'lib/osctld/mount/manager.rb', line 45 def <<(mnt) add(mnt) end |
#activate(mountpoint) ⇒ Object
Mount the directory inside the container
WARNING: this method can mount the directory multiple times! It is the caller's responsibility to ensure that the container is running.
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# File 'lib/osctld/mount/manager.rb', line 124 def activate(mountpoint) mnt = find_at(mountpoint) if mnt.nil? raise MountNotFound, mountpoint elsif !mnt.fs || !mnt.type || !mnt.opts raise MountInvalid, "incomplete mount: missing fs, type or opts" elsif !%w(bind none).include?(mnt.type) raise MountInvalid, "can activate only bind mounts, not #{mnt.type}" end shared_dir.propagate(mnt) end |
#add(mnt) ⇒ Object
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# File 'lib/osctld/mount/manager.rb', line 28 def add(mnt) exclusively do entries << mnt end ct.save_config ct.lxc_config.configure_mounts return if !mnt.automount? || mnt.type != 'bind' ct.exclusively do next unless ct.fresh_state == :running shared_dir.propagate(mnt) end end |
#all_entries ⇒ Array<Mount::Entry>
Return all mount entries, including internal entries
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# File 'lib/osctld/mount/manager.rb', line 106 def all_entries inclusively do [Mount::Entry.new( shared_dir.path, shared_dir.mountpoint, 'none', 'bind,create=dir,ro', true )] + entries.select { |m| m.in_config? || (m.automount? && !m.temp?) } end end |
#deactivate(mountpoint) ⇒ Object
Unmount the directory from the container
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# File 'lib/osctld/mount/manager.rb', line 140 def deactivate(mountpoint) mnt = find_at(mountpoint) raise MountNotFound, mountpoint unless mnt unmount(mnt) end |
#delete_at(mountpoint) ⇒ Object
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# File 'lib/osctld/mount/manager.rb', line 67 def delete_at(mountpoint) exclusively do mnt = entries.detect { |m| m.mountpoint == mountpoint } next unless mnt ct.exclusively do next unless ct.fresh_state == :running unmount(mnt) end entries.delete(mnt) end ct.save_config ct.lxc_config.configure_mounts end |
#dump ⇒ Object
Dump mounts into config
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# File 'lib/osctld/mount/manager.rb', line 100 def dump map(&:dump) end |
#dup(new_ct) ⇒ Object
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# File 'lib/osctld/mount/manager.rb', line 147 def dup(new_ct) ret = super() ret.init_lock ret.instance_variable_set('@ct', new_ct) ret.instance_variable_set('@entries', entries.map(&:clone)) ret.instance_variable_set('@shared_dir', shared_dir.dup(new_ct)) ret end |
#each(&block) ⇒ Object
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# File 'lib/osctld/mount/manager.rb', line 91 def each(&block) inclusively do entries.each(&block) end end |
#find_at(mountpoint) ⇒ Object
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# File 'lib/osctld/mount/manager.rb', line 60 def find_at(mountpoint) inclusively do entries.detect { |m| m.mountpoint == mountpoint } end end |
#prune ⇒ Object
Remote temporal mounts
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# File 'lib/osctld/mount/manager.rb', line 85 def prune exclusively do entries.delete_if { |m| m.temp? } end end |
#register(mnt) ⇒ Object
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# File 'lib/osctld/mount/manager.rb', line 50 def register(mnt) exclusively do entries << mnt end ct.save_config ct.lxc_config.configure_mounts end |
#unmount(mnt) ⇒ Object (protected)
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# File 'lib/osctld/mount/manager.rb', line 159 def unmount(mnt) ContainerControl::Commands::Unmount.run!(ct, mnt.mountpoint) rescue ContainerControl::Error => e raise UnmountError, e. end |