// Heal iterates through all juju units verifying if
// a juju-unit-agent is down and heal these machines.
func (h instanceUnitHealer) Heal() error {
conn, err := db.Conn()
if err != nil {
return err
}
defer conn.Close()
var apps []app.App
err = conn.Apps().Find(nil).All(&apps)
if err != nil {
return err
}
for _, app := range apps {
for _, u := range app.ProvisionedUnits() {
agent := fmt.Sprintf("juju-%s", strings.Join(strings.Split(u.GetName(), "/"), "-"))
if u.GetStatus() == provision.StatusDown {
log.Debugf("Healing %s", agent)
upStartCmd("stop", agent, u.GetIp())
upStartCmd("start", agent, u.GetIp())
}
}
}
return nil
}
// Heal verifies if the bootstrap private dns is different of the bootstrap
// private dns setted into agents for each machine.
// If the bootstrap private dns is wrong, Heal will injects the correct value.
func (h instanceAgentsConfigHealer) Heal() error {
conn, err := db.Conn()
if err != nil {
return err
}
defer conn.Close()
var apps []app.App
err = conn.Apps().Find(nil).All(&apps)
if err != nil {
return err
}
dns, err := h.bootstrapPrivateDns()
if err != nil {
return err
}
for _, app := range apps {
for _, u := range app.ProvisionedUnits() {
args := []string{"-o", "StrictHostKeyChecking no", "-q", "-l", "ubuntu", u.GetIp(), "grep", dns, "/etc/init/juju-machine-agent.conf"}
err := executor().Execute("ssh", args, nil, nil, nil)
if err != nil {
log.Debugf("Injecting bootstrap private dns for machine %d", u.GetMachine())
args = []string{"-o", "StrictHostKeyChecking no", "-q", "-l", "ubuntu", u.GetIp(), "sudo", "sed", "-i", "'s/env JUJU_ZOOKEEPER=.*/env JUJU_ZOOKEEPER=\"" + dns + ":2181\"/g'", "/etc/init/juju-machine-agent.conf"}
executor().Execute("ssh", args, nil, nil, nil)
}
agent := fmt.Sprintf("/etc/init/juju-%s.conf", strings.Join(strings.Split(u.GetName(), "/"), "-"))
args = []string{"-o", "StrictHostKeyChecking no", "-q", "-l", "ubuntu", u.GetIp(), "grep", dns, agent}
err = executor().Execute("ssh", args, nil, nil, nil)
if err != nil {
log.Debugf("Injecting bootstrap private dns for agent %s", agent)
args = []string{"-o", "StrictHostKeyChecking no", "-q", "-l", "ubuntu", u.GetIp(), "sudo", "sed", "-i", "'s/env JUJU_ZOOKEEPER=.*/env JUJU_ZOOKEEPER=\"" + dns + ":2181\"/g'", agent}
executor().Execute("ssh", args, nil, nil, nil)
}
}
}
return nil
}