func buildMachineMatcherShims(m *state.Machine, patterns []string) (shims []closurePredicate, _ error) {
// Look at machine status.
statusInfo, err := m.Status()
if err != nil {
return nil, err
}
shims = append(shims, func() (bool, bool, error) { return matchAgentStatus(patterns, statusInfo.Status) })
// Look at machine addresses. WARNING: Avoid the temptation to
// bring the append into the loop. The value we would close over
// will continue to change after the closure is created, and we'd
// only examine the last element of the loop for all closures.
var addrs []string
for _, a := range m.Addresses() {
addrs = append(addrs, a.Value)
}
shims = append(shims, func() (bool, bool, error) { return matchSubnet(patterns, addrs...) })
// If the machine hosts a unit that matches any of the given
// criteria, consider the machine a match as well.
unitShims, err := buildShimsForUnit(m.Units, patterns...)
if err != nil {
return nil, err
}
shims = append(shims, unitShims...)
// Units may be able to match the pattern. Ultimately defer to
// that logic, and guard against breaking the predicate-chain.
if len(unitShims) <= 0 {
shims = append(shims, func() (bool, bool, error) { return false, true, nil })
}
return
}
// runMachineUpdate connects via ssh to the machine and runs the update script
func runMachineUpdate(m *state.Machine, sshArg string) error {
progress("updating machine: %v\n", m)
addr := network.SelectPublicAddress(m.Addresses())
if addr == "" {
return fmt.Errorf("no appropriate public address found")
}
return runViaSsh(addr, sshArg)
}
func makeMachineStatus(machine *state.Machine) (status params.MachineStatus) {
var err error
status.Id = machine.Id()
agentStatus := processMachine(machine)
status.AgentStatus = agentStatus
status.Series = machine.Series()
status.Jobs = paramsJobsFromJobs(machine.Jobs())
status.WantsVote = machine.WantsVote()
status.HasVote = machine.HasVote()
sInfo, err := machine.InstanceStatus()
populateStatusFromStatusInfoAndErr(&status.InstanceStatus, sInfo, err)
instid, err := machine.InstanceId()
if err == nil {
status.InstanceId = instid
addr, err := machine.PublicAddress()
if err != nil {
// Usually this indicates that no addresses have been set on the
// machine yet.
addr = network.Address{}
logger.Debugf("error fetching public address: %q", err)
}
status.DNSName = addr.Value
mAddrs := machine.Addresses()
if len(mAddrs) == 0 {
logger.Debugf("no IP addresses fetched for machine %q", instid)
// At least give it the newly created DNSName address, if it exists.
if addr.Value != "" {
mAddrs = append(mAddrs, addr)
}
}
for _, mAddr := range mAddrs {
switch mAddr.Scope {
case network.ScopeMachineLocal, network.ScopeLinkLocal:
continue
}
status.IPAddresses = append(status.IPAddresses, mAddr.Value)
}
} else {
if errors.IsNotProvisioned(err) {
status.InstanceId = "pending"
} else {
status.InstanceId = "error"
}
}
hc, err := machine.HardwareCharacteristics()
if err != nil {
if !errors.IsNotFound(err) {
status.Hardware = "error"
}
} else {
status.Hardware = hc.String()
}
status.Containers = make(map[string]params.MachineStatus)
return
}
// remoteParamsForMachine returns a filled in RemoteExec instance
// based on the machine, command and timeout params. If the machine
// does not have an internal address, the Host is empty. This is caught
// by the function that actually tries to execute the command.
func remoteParamsForMachine(machine *state.Machine, command string, timeout time.Duration) *RemoteExec {
// magic boolean parameters are bad :-(
address, ok := network.SelectInternalAddress(machine.Addresses(), false)
execParams := &RemoteExec{
ExecParams: ssh.ExecParams{
Command: command,
Timeout: timeout,
},
MachineId: machine.Id(),
}
if ok {
execParams.Host = fmt.Sprintf("ubuntu@%s", address.Value)
}
return execParams
}
func makeMachineStatus(machine *state.Machine) (status api.MachineStatus) {
status.Id = machine.Id()
agentStatus, compatStatus := processMachine(machine)
status.Agent = agentStatus
// These legacy status values will be deprecated for Juju 2.0.
status.AgentState = compatStatus.Status
status.AgentStateInfo = compatStatus.Info
status.AgentVersion = compatStatus.Version
status.Life = compatStatus.Life
status.Err = compatStatus.Err
status.Series = machine.Series()
status.Jobs = paramsJobsFromJobs(machine.Jobs())
status.WantsVote = machine.WantsVote()
status.HasVote = machine.HasVote()
instid, err := machine.InstanceId()
if err == nil {
status.InstanceId = instid
status.InstanceState, err = machine.InstanceStatus()
if err != nil {
status.InstanceState = "error"
}
status.DNSName = network.SelectPublicAddress(machine.Addresses())
} else {
if errors.IsNotProvisioned(err) {
status.InstanceId = "pending"
} else {
status.InstanceId = "error"
}
// There's no point in reporting a pending agent state
// if the machine hasn't been provisioned. This
// also makes unprovisioned machines visually distinct
// in the output.
status.AgentState = ""
}
hc, err := machine.HardwareCharacteristics()
if err != nil {
if !errors.IsNotFound(err) {
status.Hardware = "error"
}
} else {
status.Hardware = hc.String()
}
status.Containers = make(map[string]api.MachineStatus)
return
}
func (context *statusContext) makeMachineStatus(machine *state.Machine) (status api.MachineStatus) {
status.Id = machine.Id()
status.Agent, status.AgentState, status.AgentStateInfo = processAgent(machine)
status.AgentVersion = status.Agent.Version
status.Life = status.Agent.Life
status.Err = status.Agent.Err
status.Series = machine.Series()
status.Jobs = paramsJobsFromJobs(machine.Jobs())
status.WantsVote = machine.WantsVote()
status.HasVote = machine.HasVote()
instid, err := machine.InstanceId()
if err == nil {
status.InstanceId = instid
status.InstanceState, err = machine.InstanceStatus()
if err != nil {
status.InstanceState = "error"
}
status.DNSName = network.SelectPublicAddress(machine.Addresses())
} else {
if state.IsNotProvisionedError(err) {
status.InstanceId = "pending"
} else {
status.InstanceId = "error"
}
// There's no point in reporting a pending agent state
// if the machine hasn't been provisioned. This
// also makes unprovisioned machines visually distinct
// in the output.
status.AgentState = ""
}
hc, err := machine.HardwareCharacteristics()
if err != nil {
if !errors.IsNotFound(err) {
status.Hardware = "error"
}
} else {
status.Hardware = hc.String()
}
status.Containers = make(map[string]api.MachineStatus)
return
}
