void PopulateModuleConfig(Corev1ConfigMapList configMapList, string moduleName, EdgeModule module)
{
// see if there is an entry for this module in the config maps
Corev1ConfigMap configMap = configMapList.Items.Where(cm => cm.Metadata.Name == moduleName).FirstOrDefault();
module.RestartPolicy = configMap?.Data?["restartPolicy"] ?? "on-unhealthy";
module.Version = configMap?.Data?["version"] ?? "1.0";
module.Status = configMap?.Data?["status"] ?? "running";
module.Settings.CreateOptions = configMap?.Data?["createOptions"] ?? "{}";
}
private IList <(string Name, JObject Twin)> PopulateModuleTwins(Corev1ConfigMapList configMapList, ICollection <string> moduleNames)
{
var moduleTwins = new List <(string Name, JObject Twin)>();
foreach (string moduleName in moduleNames)
{
Corev1ConfigMap configMap = configMapList.Items.Where(cm => cm.Metadata.Name == moduleName).FirstOrDefault();
if (configMap != null && configMap.Data.TryGetValue("desiredProperties", out string desiredPropsJson))
{
moduleTwins.Add((moduleName, JObject.Parse(desiredPropsJson)));
}
}
return(moduleTwins);
}
void PopulateModuleConfig(Corev1ConfigMapList configMapList, string moduleName, EdgeModule module)
{
// see if there is an entry for this module in the config maps
Corev1ConfigMap configMap = configMapList.Items.Where(cm => cm.Metadata.Name == moduleName).FirstOrDefault();
if (configMap != null && configMap.Data != null)
{
if (configMap.Data.TryGetValue("restartPolicy", out string configMapRestartPolicy))
{
module.RestartPolicy = configMapRestartPolicy ?? "on-unhealthy";
}
else
{
module.RestartPolicy = "on-unhealthy";
}
if (configMap.Data.TryGetValue("version", out string configMapVersion))
{
module.Version = configMapVersion ?? "1.0";
}
else
{
module.Version = "1.0";
}
if (configMap.Data.TryGetValue("status", out string configMapStatus))
{
module.Status = configMapStatus ?? "running";
}
else
{
module.Status = "running";
}
if (configMap.Data.TryGetValue("createOptions", out string configMapCreateOptions))
{
module.Settings.CreateOptions = configMapCreateOptions ?? "{}";
}
else
{
module.Settings.CreateOptions = "{}";
}
}
else
{
module.RestartPolicy = "on-unhealthy";
module.Version = "1.0";
module.Status = "running";
module.Settings.CreateOptions = "{}";
}
}
void PopulateEdgeHubConfig(Corev1ConfigMapList configMapList, EdgeHub edgeHub)
{
Corev1ConfigMap configMap = configMapList.Items.Where(cm => cm.Metadata.Name == "edgehub").FirstOrDefault();
if (configMap != null && configMap.Data.TryGetValue("desiredProperties", out string desiredPropsJson))
{
EdgeHub edgeHub2 = JsonConvert.DeserializeObject <EdgeHub>(desiredPropsJson);
if (edgeHub2.Routes != null)
{
edgeHub.Routes = edgeHub2.Routes;
}
if (edgeHub2.StoreForwardConfiguration != null)
{
edgeHub.StoreForwardConfiguration = edgeHub2.StoreForwardConfiguration;
}
}
}
void PopulateEdgeAgentConfig(Corev1ConfigMapList configMapList, EdgeAgent edgeAgent)
{
Corev1ConfigMap configMap = configMapList.Items.Where(cm => cm.Metadata.Name == "edgeagent").FirstOrDefault();
if (configMap != null && configMap.Data.TryGetValue("desiredProperties", out string desiredPropsJson))
{
EdgeAgent edgeAgent2 = JsonConvert.DeserializeObject <EdgeAgent>(desiredPropsJson);
if (edgeAgent2.Runtime != null)
{
if (edgeAgent2.Runtime.Settings.RegistryCredentials != null)
{
edgeAgent.Runtime.Settings.RegistryCredentials = edgeAgent2.Runtime.Settings.RegistryCredentials;
}
}
if (edgeAgent2.SystemModules != null)
{
if (edgeAgent2.SystemModules.ContainsKey("edgeHub"))
{
edgeAgent.SystemModules["edgeHub"].Env = edgeAgent2.SystemModules["edgeHub"].Env;
}
}
}
}
public async Task CreatePodAsync(Corev1Pod pod)
{
if (this.IsEdgeDeployment(pod))
{
// get list of config maps in this namespace
Corev1ConfigMapList configMapList = await this.kubeClient.ListNamespacedConfigMapAsync(pod.Metadata.NamespaceProperty);
// build configuration
var configuration = new Configuration(pod.Metadata.Name)
{
TargetCondition = pod.Metadata.Annotations["targetCondition"],
Priority = ParseInt32(pod.Metadata.Annotations["priority"], 10),
Labels = new Dictionary <string, string>(),
Content = new ConfigurationContent
{
ModuleContent = new Dictionary <string, TwinContent>()
}
};
// copy over the labels set on the pod as deployment labels
foreach (KeyValuePair <string, string> label in pod.Metadata.Labels)
{
configuration.Labels.Add(label.Key, label.Value);
}
EdgeAgent edgeAgent = this.GetDefaultEdgeAgentConfig();
this.PopulateEdgeAgentConfig(configMapList, edgeAgent);
foreach (Corev1Container container in pod.Spec.Containers)
{
var module = new EdgeModule
{
Settings = new EdgeModuleSettings
{
Image = container.Image
}
};
this.PopulateModuleConfig(configMapList, container.Name, module);
edgeAgent.Modules.Add(container.Name, module);
}
EdgeHub edgeHub = this.GetDefaultEdgeHubConfig();
this.PopulateEdgeHubConfig(configMapList, edgeHub);
// create module twins
IList <(string Name, JObject Twin)> moduleTwins = this.PopulateModuleTwins(configMapList, edgeAgent.Modules.Keys);
// now we have everything we need to build the configuration content
AddModuleTwin(configuration, "$edgeAgent", edgeAgent);
AddModuleTwin(configuration, "$edgeHub", edgeHub);
foreach ((string Name, JObject Twin) in moduleTwins)
{
AddModuleTwin(configuration, Name, Twin);
}
await this.registryManager.AddConfigurationAsync(configuration);
}
pod.Status = pod.Status ?? new Corev1PodStatus();
pod.Status.Phase = "Running";
pod.Status.Conditions = new List <Corev1PodCondition>
{
new Corev1PodCondition("True", "Initialized", null, DateTime.UtcNow),
new Corev1PodCondition("True", "Ready", null, DateTime.UtcNow),
new Corev1PodCondition("True", "PodScheduled", null, DateTime.UtcNow)
};
this.podsMap.AddOrUpdate(pod.Metadata?.Name ?? string.Empty, pod, (k, v) => pod);
}