#### Blocking APIs

Blocking APIs are convenient because you get top-to-bottom procedural code without indirection. Network calls work like regular method calls: ask for data and it is returned. If the request fails, you get a stacktrace right where the call was made.

Blocking APIs may be inefficient because you hold a thread idle while waiting on the network. Threads are expensive because they have both a memory overhead and a context-switching overhead.

#!/bin/sh
#
# fess <summary>
#
# chkconfig:   2345 80 20
# description: Starts and stops a single fess instance on this system 
#

### BEGIN INIT INFO
# Provides: Fess
# Required-Start: $network $named
# Required-Stop: $network $named
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: This service manages the fess daemon

 * Response caching avoids the network completely for repeat requests.

OkHttp perseveres when the network is troublesome: it will silently recover from common connection
problems. If your service has multiple IP addresses, OkHttp will attempt alternate addresses if the
first connect fails. This is necessary for IPv4+IPv6 and services hosted in redundant data

{
  "cniVersion": "0.3.1",
  "name": "k8s-pod-network",
  "plugins": [
    {
      "addIf": "true",
      "bridge": "mybridge",
      "ipMasq": true,
      "ipam": {
        "gateway": "10.1.0.1",
        "routes": [
          {
            "dst": "0.0.0.0/0"
          }
        ],
        "subnet": "10.1.0.0/16",
        "type": "host-local"
      },
      "isGateway": true,
      "mtu": 1460,

{
  "name": "k8s-pod-network",
  "plugins": [
    {
      "type": "calico",
      "etcd_endpoints": "http://10.110.0.136:6666",
      "plugin_log_level": "info",
      "mtu": 1500,
      "ipam": {
        "type": "calico-ipam"
      },
      "policy": {
        "type": "k8s"
      },
      "kubernetes": {
        "kubeconfig": "/etc/cni/net.d/calico-kubeconfig"
      }
    },
    {
      "type": "portmap",

 * }</pre>
 *
 * you will invoke it depending on the graph representation you're using.
 *
 * <p>If you have an instance of one of the primary {@code common.graph} types ({@link Graph},
 * {@link ValueGraph}, and {@link Network}):
 *
 * <pre>{@code
 * someGraphAlgorithm(startNode, graph);
 * }</pre>
 *
 * This works because those types each implement {@code SuccessorsFunction}. It will also work with

{
  "name": "k8s-pod-network",
  "cniVersion": "0.3.1",
  "pugins": [
    {
      "type": "calico",
      "etcd_endpoints": "http://10.110.0.136:6666",
      "plugin_log_level": "info",
      "mtu": 1500,
      "ipam": {
        "type": "calico-ipam"
      },
      "policy": {
        "type": "k8s"
      },
      "kubernetes": {
        "kubeconfig": "/etc/cni/net.d/calico-kubeconfig"
      }
    },
    {

```bash
helm install --set persistence.existingClaim=PVC_NAME minio/minio
```

### NetworkPolicy

To enable network policy for MinIO,
install [a networking plugin that implements the Kubernetes
NetworkPolicy spec](https://kubernetes.io/docs/tasks/administer-cluster/declare-network-policy#before-you-begin),
and set `networkPolicy.enabled` to `true`.

- EndpointSlice controllers are less likely to create duplicate EndpointSlices. ([#101763](https://github.com/kubernetes/kubernetes/pull/101763), [@aojea](https://github.com/aojea)) [SIG Apps and Network]

	return &dep.RealDependencies{
		// We are in the host FS *and* the Host network
		HostFilesystemPodNetwork: false,
		NetworkNamespace:         "",
	}
}

func realDependenciesInpod() *dep.RealDependencies {
	return &dep.RealDependencies{
		// We are running the host FS, but the pod network -- setup rules differently (locking, etc)
		HostFilesystemPodNetwork: true,
		NetworkNamespace:         "",