//If image is running, ping healthcheck.
// If not healthy, get latest version from docker registry, stop old and start new
//Otherwise, start latest version from docker registry
//Ensure started container is healthy
func up(applications []Application, airplaneMode bool) {
healthChecker := healthcheck.HealthChecker{1, 1, 60}
for _, app := range applications {
fmt.Printf("%s", app.ImageName)
var start = true
if docker.IsImageRunning(app.ImageName) {
fmt.Println(" checking")
if healthcheck.IsHealthy(app.HealthCheck, healthChecker) {
fmt.Println(" - healthy")
start = false
} else {
fmt.Println(" unhealthy. Restarting")
latestVersion := getLatestVersion(app.ImageName, airplaneMode)
image := fmt.Sprintf("%s:%s", strings.Split(app.ImageName, ":")[0], latestVersion)
docker.Stop([]docker.Container{docker.GetContainerIdFromImageName(image)})
}
} else {
fmt.Println(" starting")
}
if start {
image := fmt.Sprintf("%s:%s", strings.Split(app.ImageName, ":")[0], getLatestVersion(app.ImageName, airplaneMode))
docker.Start(app.Service, image, app.Ports)
fmt.Printf(" - Healthcheck: %s\n ", app.HealthCheck.Description())
if !healthcheck.AttemptHealthCheck(app.HealthCheck, healthChecker) {
os.Exit(1)
}
}
fmt.Println("")
}
}
//If image is running, stop and refresh with latest version from docker registry.
//Otherwise, start latest version from docker registry
//Ensure started container is healthy
func refresh(appNames string, pathToYml string, airplaneMode bool) {
fmt.Println("Fetching latest versions of applications from docker hub")
apps := splitCommas(appNames)
internalApplications := getInternalApplications(pathToYml)
registeredApps := filterAppsAndExpandDepends(apps, internalApplications, airplaneMode)
var appsInStartOrder []Application
for i := len(registeredApps) - 1; i >= 0; i-- {
appsInStartOrder = append(appsInStartOrder, registeredApps[i])
}
healthChecker := healthcheck.HealthChecker{1, 1, 30}
for _, app := range appsInStartOrder {
var start = true
latestVersion := getLatestVersion(app.ImageName, airplaneMode)
if docker.IsImageRunning(app.ImageName) {
fmt.Println(" checking")
currentVersion := docker.GetImageVersion(app.ImageName)
image := fmt.Sprintf("%s:%s", currentVersion, latestVersion)
fmt.Printf("Running Version [%s:%s], Latest Version: [%s:%s]\n", app.ImageName, currentVersion, app.ImageName, latestVersion)
if currentVersion != latestVersion {
fmt.Printf("Stopping Version [%s:%s]\n", app.ImageName, currentVersion)
docker.Stop([]docker.Container{docker.GetContainerIdFromImageName(fmt.Sprintf("%s:%s", app.ImageName, currentVersion))})
} else {
if healthcheck.IsHealthy(app.HealthCheck, healthChecker) {
fmt.Println(" - healthy")
start = false
} else {
fmt.Println(" unhealthy. Restarting")
docker.Stop([]docker.Container{docker.GetContainerIdFromImageName(image)})
}
}
} else {
fmt.Println(" starting")
}
if start {
newImage := fmt.Sprintf("%s:%s", app.ImageName, latestVersion)
docker.Start(app.Service, newImage, app.Ports)
fmt.Printf(" - Healthcheck: %s\n ", app.HealthCheck.Description())
if !healthcheck.AttemptHealthCheck(app.HealthCheck, healthChecker) {
os.Exit(1)
}
}
fmt.Println("")
}
}