pallet.core.api — dda/pallet 0.9.0

Base level API for pallet

action-plan clj

(action-plan service-state environment plan-fn args target-map)

Build the action plan for the specified plan-fn on the given node, within the context of the service-state. The plan-state contains all the settings, etc, for all groups. target-map is a map for the session describing the target.

action-plans clj

(action-plans service-state plan-state environment phase targets)

create-nodes clj

(create-nodes compute-service environment group count)

Create count nodes for a group.

environment-execution-settings clj

(environment-execution-settings)

Returns execution settings based purely on the environment

environment-image-execution-settings clj

(environment-image-execution-settings)

Returns execution settings based on the environment and the image user.

execute-action-plan clj multimethod

Execute the action-plan on the target.

execute-action-plan* clj

(execute-action-plan* session
                      executor
                      execute-status-fn
                      {:keys [action-plan phase target-type target]})

Execute the action-plan on the target.

group-delta clj

(group-delta targets group)

Calculate actual and required counts for a group

group-deltas clj

(group-deltas targets groups)

Calculate actual and required counts for a sequence of groups. Returns a map from group to a map with :actual and :target counts.

groups-to-create clj

(groups-to-create group-deltas compute-service)

Return a sequence of groups that currently have no nodes, but will have nodes added.

groups-to-remove clj

(groups-to-remove group-deltas compute-service)

Return a sequence of groups that have nodes, but will have all nodes removed.

has-state-flag? clj

(has-state-flag? state-name)

Return a predicate to test for a state-flag having been set.

nodes-to-add clj

(nodes-to-add group-deltas)

Finds the specified number of nodes to be added to the given groups. Returns a map from group to a count of servers to add

nodes-to-remove clj

(nodes-to-remove targets group-deltas)

Finds the specified number of nodes to be removed from the given groups. Nodes are selected at random. Returns a map from group to a map with :servers and :all, where :servers is a sequence of severs to remove, and :all is a boolean that is true if all nodes are being removed.

phase-args clj

(phase-args phase)

phase-error-exceptions clj

(phase-error-exceptions result)

Return a sequence of exceptions from phase errors for an operation.

phase-errors clj

(phase-errors result)

Return a sequence of phase errors for an operation. Each element in the sequence represents a failed action, and is a map, with :target, :error, :context and all the return value keys for the return value of the failed action.

read-or-empty-map clj

(read-or-empty-map s)

remove-nodes clj

(remove-nodes compute-service group {:keys [nodes all]})

Removes nodes from group. If all is true, then all nodes for the group are being removed.

service-state clj

(service-state compute-service groups)

Query the available nodes in a compute-service, filtering for nodes in the specified groups. Returns a sequence that contains a node-map for each matching node.

set-state-for-node clj

(set-state-for-node state-name node)

Sets the boolean state-name flag on node.

state-tag-name clj

target-action-plan clj multimethod

Build action plans for the specified phase on all nodes or groups in the given target, within the context of the service-state. The plan-state contains all the settings, etc, for all groups.

target-phase clj

(target-phase target phase)

throw-phase-errors clj

(throw-phase-errors result)

version clj

(version)

Returns the pallet version.