Kelsey Hightower
parent
7f7fd71874
commit
ede3437ee8
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@ -0,0 +1,34 @@
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admin-csr.json
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admin-key.pem
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admin.csr
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admin.pem
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ca-config.json
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ca-csr.json
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ca-key.pem
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ca.csr
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ca.pem
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encryption-config.yaml
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kube-proxy-csr.json
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kube-proxy-key.pem
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kube-proxy.csr
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kube-proxy.kubeconfig
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kube-proxy.pem
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kubernetes-csr.json
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kubernetes-key.pem
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kubernetes.csr
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kubernetes.pem
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worker-0-csr.json
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worker-0-key.pem
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worker-0.csr
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worker-0.kubeconfig
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worker-0.pem
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worker-1-csr.json
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worker-1-key.pem
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worker-1.csr
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worker-1.kubeconfig
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worker-1.pem
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worker-2-csr.json
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worker-2-key.pem
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worker-2.csr
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worker-2.kubeconfig
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worker-2.pem
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@ -14,10 +14,10 @@ The target audience for this tutorial is someone planning to support a productio
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Kubernetes The Hard Way guides you through bootstrapping a highly available Kubernetes cluster with end-to-end encryption between components and RBAC authentication.
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* [Kubernetes](https://github.com/kubernetes/kubernetes) 1.7.4
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* [CRI-O Container Runtime](https://github.com/kubernetes-incubator/cri-o) v1.0.0-beta.0
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* [CNI Container Networking](https://github.com/containernetworking/cni) v0.6.0
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* [etcd](https://github.com/coreos/etcd) 3.2.6
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* [Kubernetes](https://github.com/kubernetes/kubernetes) 1.8.0
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* [cri-containerd Container Runtime](https://github.com/kubernetes-incubator/cri-containerd) 1.0.0-alpha.0
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* [CNI Container Networking](https://github.com/containernetworking/cni) 0.6.0
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* [etcd](https://github.com/coreos/etcd) 3.2.8
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## Labs
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@ -14,7 +14,7 @@ This tutorial leverages the [Google Cloud Platform](https://cloud.google.com/) t
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Follow the Google Cloud SDK [documentation](https://cloud.google.com/sdk/) to install and configure the `gcloud` command line utility.
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Verify the Google Cloud SDK version is 169.0.0 or higher:
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Verify the Google Cloud SDK version is 173.0.0 or higher:
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```
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gcloud version
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@ -69,7 +69,7 @@ The `kubectl` command line utility is used to interact with the Kubernetes API S
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### OS X
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```
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curl -o kubectl https://storage.googleapis.com/kubernetes-release/release/v1.7.4/bin/darwin/amd64/kubectl
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curl -o kubectl https://storage.googleapis.com/kubernetes-release/release/v1.8.0/bin/darwin/amd64/kubectl
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```
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```
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@ -83,7 +83,7 @@ sudo mv kubectl /usr/local/bin/
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### Linux
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```
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wget https://storage.googleapis.com/kubernetes-release/release/v1.7.4/bin/linux/amd64/kubectl
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wget https://storage.googleapis.com/kubernetes-release/release/v1.8.0/bin/linux/amd64/kubectl
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```
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```
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@ -96,7 +96,7 @@ sudo mv kubectl /usr/local/bin/
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### Verification
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Verify `kubectl` version 1.7.4 or higher is installed:
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Verify `kubectl` version 1.8.0 or higher is installed:
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```
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kubectl version --client
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@ -105,7 +105,7 @@ kubectl version --client
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> output
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```
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Client Version: version.Info{Major:"1", Minor:"7", GitVersion:"v1.7.4", GitCommit:"793658f2d7ca7f064d2bdf606519f9fe1229c381", GitTreeState:"clean", BuildDate:"2017-08-17T08:48:23Z", GoVersion:"go1.8.3", Compiler:"gc", Platform:"darwin/amd64"}
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Client Version: version.Info{Major:"1", Minor:"8", GitVersion:"v1.8.0", GitCommit:"6e937839ac04a38cac63e6a7a306c5d035fe7b0a", GitTreeState:"clean", BuildDate:"2017-09-28T22:57:57Z", GoVersion:"go1.8.3", Compiler:"gc", Platform:"darwin/amd64"}
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```
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Next: [Provisioning Compute Resources](03-compute-resources.md)
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@ -66,7 +66,7 @@ gcloud compute firewall-rules create kubernetes-the-hard-way-allow-health-checks
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List the firewall rules in the `kubernetes-the-hard-way` VPC network:
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```
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gcloud compute firewall-rules list --filter "network kubernetes-the-hard-way"
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gcloud compute firewall-rules list --filter "network: kubernetes-the-hard-way"
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```
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> output
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@ -102,7 +102,7 @@ kubernetes-the-hard-way us-west1 XX.XXX.XXX.XX RESERVED
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## Compute Instances
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The compute instances in this lab will be provisioned using [Ubuntu Server](https://www.ubuntu.com/server) 16.04, which has good support for the [CRI-O container runtime](https://github.com/kubernetes-incubator/cri-o). Each compute instance will be provisioned with a fixed private IP address to simplify the Kubernetes bootstrapping process.
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The compute instances in this lab will be provisioned using [Ubuntu Server](https://www.ubuntu.com/server) 16.04, which has good support for the [cri-containerd container runtime](https://github.com/kubernetes-incubator/cri-containerd). Each compute instance will be provisioned with a fixed private IP address to simplify the Kubernetes bootstrapping process.
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### Kubernetes Controllers
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@ -18,17 +18,17 @@ Download the official etcd release binaries from the [coreos/etcd](https://githu
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```
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wget -q --show-progress --https-only --timestamping \
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"https://github.com/coreos/etcd/releases/download/v3.2.6/etcd-v3.2.6-linux-amd64.tar.gz"
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"https://github.com/coreos/etcd/releases/download/v3.2.8/etcd-v3.2.8-linux-amd64.tar.gz"
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```
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Extract and install the `etcd` server and the `etcdctl` command line utility:
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```
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tar -xvf etcd-v3.2.6-linux-amd64.tar.gz
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tar -xvf etcd-v3.2.8-linux-amd64.tar.gz
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```
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```
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sudo mv etcd-v3.2.6-linux-amd64/etcd* /usr/local/bin/
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sudo mv etcd-v3.2.8-linux-amd64/etcd* /usr/local/bin/
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```
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### Configure the etcd Server
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```
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wget -q --show-progress --https-only --timestamping \
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"https://storage.googleapis.com/kubernetes-release/release/v1.7.4/bin/linux/amd64/kube-apiserver" \
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"https://storage.googleapis.com/kubernetes-release/release/v1.7.4/bin/linux/amd64/kube-controller-manager" \
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"https://storage.googleapis.com/kubernetes-release/release/v1.7.4/bin/linux/amd64/kube-scheduler" \
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"https://storage.googleapis.com/kubernetes-release/release/v1.7.4/bin/linux/amd64/kubectl"
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"https://storage.googleapis.com/kubernetes-release/release/v1.8.0/bin/linux/amd64/kube-apiserver" \
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"https://storage.googleapis.com/kubernetes-release/release/v1.8.0/bin/linux/amd64/kube-controller-manager" \
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"https://storage.googleapis.com/kubernetes-release/release/v1.8.0/bin/linux/amd64/kube-scheduler" \
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"https://storage.googleapis.com/kubernetes-release/release/v1.8.0/bin/linux/amd64/kubectl"
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```
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Install the Kubernetes binaries:
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@ -61,7 +61,7 @@ Documentation=https://github.com/GoogleCloudPlatform/kubernetes
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[Service]
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ExecStart=/usr/local/bin/kube-apiserver \\
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--admission-control=NamespaceLifecycle,NodeRestriction,LimitRanger,ServiceAccount,DefaultStorageClass,ResourceQuota \\
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--admission-control=Initializers,NamespaceLifecycle,NodeRestriction,LimitRanger,ServiceAccount,DefaultStorageClass,ResourceQuota \\
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--advertise-address=${INTERNAL_IP} \\
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--allow-privileged=true \\
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--apiserver-count=3 \\
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--etcd-servers=https://10.240.0.10:2379,https://10.240.0.11:2379,https://10.240.0.12:2379 \\
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--event-ttl=1h \\
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--experimental-encryption-provider-config=/var/lib/kubernetes/encryption-config.yaml \\
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--insecure-bind-address=0.0.0.0 \\
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--insecure-bind-address=127.0.0.1 \\
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--kubelet-certificate-authority=/var/lib/kubernetes/ca.pem \\
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--kubelet-client-certificate=/var/lib/kubernetes/kubernetes.pem \\
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--kubelet-client-key=/var/lib/kubernetes/kubernetes-key.pem \\
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--kubelet-https=true \\
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--runtime-config=rbac.authorization.k8s.io/v1alpha1 \\
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--runtime-config=api/all \\
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--service-account-key-file=/var/lib/kubernetes/ca-key.pem \\
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--service-cluster-ip-range=10.32.0.0/24 \\
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--service-node-port-range=30000-32767 \\
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@ -118,7 +118,7 @@ ExecStart=/usr/local/bin/kube-controller-manager \\
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--cluster-signing-cert-file=/var/lib/kubernetes/ca.pem \\
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--cluster-signing-key-file=/var/lib/kubernetes/ca-key.pem \\
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--leader-elect=true \\
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--master=http://${INTERNAL_IP}:8080 \\
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--master=http://127.0.0.1:8080 \\
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--root-ca-file=/var/lib/kubernetes/ca.pem \\
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--service-account-private-key-file=/var/lib/kubernetes/ca-key.pem \\
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--service-cluster-ip-range=10.32.0.0/24 \\
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@ -144,7 +144,7 @@ Documentation=https://github.com/GoogleCloudPlatform/kubernetes
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[Service]
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ExecStart=/usr/local/bin/kube-scheduler \\
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--leader-elect=true \\
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--master=http://${INTERNAL_IP}:8080 \\
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--master=http://127.0.0.1:8080 \\
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--v=2
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Restart=on-failure
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RestartSec=5
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@ -191,6 +191,64 @@ etcd-1 Healthy {"health": "true"}
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> Remember to run the above commands on each controller node: `controller-0`, `controller-1`, and `controller-2`.
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## RBAC for Kubelet Authorization
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In this section you will configure RBAC permissions to allow the Kubernetes API Server to access the Kubelet API on each worker node. Access to the Kubelet API is required for retrieving metrics, logs, and executing commands in pods.
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> This tutorial sets the Kubelet `--authorization-mode` flag to `Webhook`. Webhook mode uses the [SubjectAccessReview](https://kubernetes.io/docs/admin/authorization/#checking-api-access) API to determine authorization.
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```
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gcloud compute ssh controller-0
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```
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Create the `system:kube-apiserver-to-kubelet` [ClusterRole](https://kubernetes.io/docs/admin/authorization/rbac/#role-and-clusterrole) with permissions to access the Kubelet API and perform most common tasks associated with managing pods:
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```
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cat <<EOF | kubectl apply -f -
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apiVersion: rbac.authorization.k8s.io/v1beta1
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kind: ClusterRole
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metadata:
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annotations:
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rbac.authorization.kubernetes.io/autoupdate: "true"
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labels:
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kubernetes.io/bootstrapping: rbac-defaults
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name: system:kube-apiserver-to-kubelet
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rules:
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- apiGroups:
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- ""
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resources:
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- nodes/proxy
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- nodes/stats
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- nodes/log
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- nodes/spec
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- nodes/metrics
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verbs:
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- "*"
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EOF
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```
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The Kubernetes API Server authenticates to the Kubelet as the `kubernetes` user using the client certificate as defined by the `--kubelet-client-certificate` flag.
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Bind the `system:kube-apiserver-to-kubelet` ClusterRole to the `kubernetes` user:
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```
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cat <<EOF | kubectl apply -f -
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apiVersion: rbac.authorization.k8s.io/v1beta1
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kind: ClusterRoleBinding
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metadata:
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name: system:kube-apiserver
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namespace: ""
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roleRef:
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apiGroup: rbac.authorization.k8s.io
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kind: ClusterRole
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name: system:kube-apiserver-to-kubelet
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subjects:
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- apiGroup: rbac.authorization.k8s.io
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kind: User
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name: kubernetes
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EOF
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```
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## The Kubernetes Frontend Load Balancer
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In this section you will provision an external load balancer to front the Kubernetes API Servers. The `kubernetes-the-hard-way` static IP address will be attached to the resulting load balancer.
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@ -200,15 +258,7 @@ In this section you will provision an external load balancer to front the Kubern
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Create the external load balancer network resources:
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```
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gcloud compute http-health-checks create kube-apiserver-health-check \
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--description "Kubernetes API Server Health Check" \
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--port 8080 \
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--request-path /healthz
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```
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```
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gcloud compute target-pools create kubernetes-target-pool \
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--http-health-check=kube-apiserver-health-check
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gcloud compute target-pools create kubernetes-target-pool
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```
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```
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@ -235,7 +285,7 @@ gcloud compute forwarding-rules create kubernetes-forwarding-rule \
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Retrieve the `kubernetes-the-hard-way` static IP address:
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```
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KUBERNETES_PUBLIC_IP_ADDRESS=$(gcloud compute addresses describe kubernetes-the-hard-way \
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KUBERNETES_PUBLIC_ADDRESS=$(gcloud compute addresses describe kubernetes-the-hard-way \
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--region $(gcloud config get-value compute/region) \
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--format 'value(address)')
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```
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@ -243,7 +293,7 @@ KUBERNETES_PUBLIC_IP_ADDRESS=$(gcloud compute addresses describe kubernetes-the-
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Make a HTTP request for the Kubernetes version info:
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```
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curl --cacert ca.pem https://${KUBERNETES_PUBLIC_IP_ADDRESS}:6443/version
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curl --cacert ca.pem https://${KUBERNETES_PUBLIC_ADDRESS}:6443/version
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```
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> output
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@ -251,11 +301,11 @@ curl --cacert ca.pem https://${KUBERNETES_PUBLIC_IP_ADDRESS}:6443/version
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```
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{
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"major": "1",
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"minor": "7",
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"gitVersion": "v1.7.4",
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"gitCommit": "793658f2d7ca7f064d2bdf606519f9fe1229c381",
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"minor": "8",
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"gitVersion": "v1.8.0",
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"gitCommit": "6e937839ac04a38cac63e6a7a306c5d035fe7b0a",
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"gitTreeState": "clean",
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"buildDate": "2017-08-17T08:30:51Z",
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"buildDate": "2017-09-28T22:46:41Z",
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"goVersion": "go1.8.3",
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"compiler": "gc",
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"platform": "linux/amd64"
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|
|
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@ -1,6 +1,6 @@
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# Bootstrapping the Kubernetes Worker Nodes
|
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|
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In this lab you will bootstrap three Kubernetes worker nodes. The following components will be installed on each node: [runc](https://github.com/opencontainers/runc), [container networking plugins](https://github.com/containernetworking/cni), [cri-o](https://github.com/kubernetes-incubator/cri-o), [kubelet](https://kubernetes.io/docs/admin/kubelet), and [kube-proxy](https://kubernetes.io/docs/concepts/cluster-administration/proxies).
|
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In this lab you will bootstrap three Kubernetes worker nodes. The following components will be installed on each node: [runc](https://github.com/opencontainers/runc), [container networking plugins](https://github.com/containernetworking/cni), [cri-containerd](https://github.com/kubernetes-incubator/cri-containerd), [kubelet](https://kubernetes.io/docs/admin/kubelet), and [kube-proxy](https://kubernetes.io/docs/concepts/cluster-administration/proxies).
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## Prerequisites
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|
@ -12,45 +12,31 @@ gcloud compute ssh worker-0
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## Provisioning a Kubernetes Worker Node
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||||
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### Install the cri-o OS Dependencies
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||||
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Add the `alexlarsson/flatpak` [PPA](https://launchpad.net/ubuntu/+ppas) which hosts the `libostree` package:
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Install the OS dependencies:
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|
||||
```
|
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sudo add-apt-repository -y ppa:alexlarsson/flatpak
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sudo apt-get -y install socat
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||||
```
|
||||
|
||||
```
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sudo apt-get update
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||||
```
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|
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Install the OS dependencies required by the cri-o container runtime:
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|
||||
```
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sudo apt-get install -y socat libgpgme11 libostree-1-1
|
||||
```
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> The socat binary enables support for the `kubectl port-forward` command.
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||||
|
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### Download and Install Worker Binaries
|
||||
|
||||
```
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wget -q --show-progress --https-only --timestamping \
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https://github.com/containernetworking/plugins/releases/download/v0.6.0/cni-plugins-amd64-v0.6.0.tgz \
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https://github.com/opencontainers/runc/releases/download/v1.0.0-rc4/runc.amd64 \
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https://storage.googleapis.com/kubernetes-the-hard-way/crio-amd64-v1.0.0-beta.0.tar.gz \
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https://storage.googleapis.com/kubernetes-release/release/v1.7.4/bin/linux/amd64/kubectl \
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https://storage.googleapis.com/kubernetes-release/release/v1.7.4/bin/linux/amd64/kube-proxy \
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https://storage.googleapis.com/kubernetes-release/release/v1.7.4/bin/linux/amd64/kubelet
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https://github.com/kubernetes-incubator/cri-containerd/releases/download/v1.0.0-alpha.0/cri-containerd-1.0.0-alpha.0.tar.gz \
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https://storage.googleapis.com/kubernetes-release/release/v1.8.0/bin/linux/amd64/kubectl \
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https://storage.googleapis.com/kubernetes-release/release/v1.8.0/bin/linux/amd64/kube-proxy \
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https://storage.googleapis.com/kubernetes-release/release/v1.8.0/bin/linux/amd64/kubelet
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||||
```
|
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|
||||
Create the installation directories:
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||||
|
||||
```
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sudo mkdir -p \
|
||||
/etc/containers \
|
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/etc/cni/net.d \
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||||
/etc/crio \
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/opt/cni/bin \
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/usr/local/libexec/crio \
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/var/lib/kubelet \
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/var/lib/kube-proxy \
|
||||
/var/lib/kubernetes \
|
||||
|
|
@ -64,23 +50,15 @@ sudo tar -xvf cni-plugins-amd64-v0.6.0.tgz -C /opt/cni/bin/
|
|||
```
|
||||
|
||||
```
|
||||
tar -xvf crio-amd64-v1.0.0-beta.0.tar.gz
|
||||
sudo tar -xvf cri-containerd-1.0.0-alpha.0.tar.gz -C /
|
||||
```
|
||||
|
||||
```
|
||||
chmod +x kubectl kube-proxy kubelet runc.amd64
|
||||
chmod +x kubectl kube-proxy kubelet
|
||||
```
|
||||
|
||||
```
|
||||
sudo mv runc.amd64 /usr/local/bin/runc
|
||||
```
|
||||
|
||||
```
|
||||
sudo mv crio crioctl kpod kubectl kube-proxy kubelet /usr/local/bin/
|
||||
```
|
||||
|
||||
```
|
||||
sudo mv conmon pause /usr/local/libexec/crio/
|
||||
sudo mv kubectl kube-proxy kubelet /usr/local/bin/
|
||||
```
|
||||
|
||||
### Configure CNI Networking
|
||||
|
|
@ -131,32 +109,6 @@ Move the network configuration files to the CNI configuration directory:
|
|||
sudo mv 10-bridge.conf 99-loopback.conf /etc/cni/net.d/
|
||||
```
|
||||
|
||||
### Configure the CRI-O Container Runtime
|
||||
|
||||
```
|
||||
sudo mv crio.conf seccomp.json /etc/crio/
|
||||
```
|
||||
|
||||
```
|
||||
sudo mv policy.json /etc/containers/
|
||||
```
|
||||
|
||||
```
|
||||
cat > crio.service <<EOF
|
||||
[Unit]
|
||||
Description=CRI-O daemon
|
||||
Documentation=https://github.com/kubernetes-incubator/cri-o
|
||||
|
||||
[Service]
|
||||
ExecStart=/usr/local/bin/crio
|
||||
Restart=always
|
||||
RestartSec=10s
|
||||
|
||||
[Install]
|
||||
WantedBy=multi-user.target
|
||||
EOF
|
||||
```
|
||||
|
||||
### Configure the Kubelet
|
||||
|
||||
```
|
||||
|
|
@ -178,25 +130,26 @@ cat > kubelet.service <<EOF
|
|||
[Unit]
|
||||
Description=Kubernetes Kubelet
|
||||
Documentation=https://github.com/GoogleCloudPlatform/kubernetes
|
||||
After=crio.service
|
||||
Requires=crio.service
|
||||
After=cri-containerd.service
|
||||
Requires=cri-containerd.service
|
||||
|
||||
[Service]
|
||||
ExecStart=/usr/local/bin/kubelet \\
|
||||
--allow-privileged=true \\
|
||||
--anonymous-auth=false \\
|
||||
--authorization-mode=Webhook \\
|
||||
--client-ca-file=/var/lib/kubernetes/ca.pem \\
|
||||
--cluster-dns=10.32.0.10 \\
|
||||
--cluster-domain=cluster.local \\
|
||||
--container-runtime=remote \\
|
||||
--container-runtime-endpoint=unix:///var/run/crio.sock \\
|
||||
--enable-custom-metrics \\
|
||||
--container-runtime-endpoint=unix:///var/run/cri-containerd.sock \\
|
||||
--image-pull-progress-deadline=2m \\
|
||||
--image-service-endpoint=unix:///var/run/crio.sock \\
|
||||
--kubeconfig=/var/lib/kubelet/kubeconfig \\
|
||||
--network-plugin=cni \\
|
||||
--pod-cidr=${POD_CIDR} \\
|
||||
--register-node=true \\
|
||||
--require-kubeconfig \\
|
||||
--runtime-request-timeout=10m \\
|
||||
--runtime-request-timeout=15m \\
|
||||
--tls-cert-file=/var/lib/kubelet/${HOSTNAME}.pem \\
|
||||
--tls-private-key-file=/var/lib/kubelet/${HOSTNAME}-key.pem \\
|
||||
--v=2
|
||||
|
|
@ -239,7 +192,7 @@ EOF
|
|||
### Start the Worker Services
|
||||
|
||||
```
|
||||
sudo mv crio.service kubelet.service kube-proxy.service /etc/systemd/system/
|
||||
sudo mv kubelet.service kube-proxy.service /etc/systemd/system/
|
||||
```
|
||||
|
||||
```
|
||||
|
|
@ -247,11 +200,11 @@ sudo systemctl daemon-reload
|
|||
```
|
||||
|
||||
```
|
||||
sudo systemctl enable crio kubelet kube-proxy
|
||||
sudo systemctl enable containerd cri-containerd kubelet kube-proxy
|
||||
```
|
||||
|
||||
```
|
||||
sudo systemctl start crio kubelet kube-proxy
|
||||
sudo systemctl start containerd cri-containerd kubelet kube-proxy
|
||||
```
|
||||
|
||||
> Remember to run the above commands on each worker node: `worker-0`, `worker-1`, and `worker-2`.
|
||||
|
|
@ -273,10 +226,10 @@ kubectl get nodes
|
|||
> output
|
||||
|
||||
```
|
||||
NAME STATUS AGE VERSION
|
||||
worker-0 Ready 5m v1.7.4
|
||||
worker-1 Ready 3m v1.7.4
|
||||
worker-2 Ready 7s v1.7.4
|
||||
NAME STATUS ROLES AGE VERSION
|
||||
worker-0 Ready <none> 1m v1.8.0
|
||||
worker-1 Ready <none> 1m v1.8.0
|
||||
worker-2 Ready <none> 1m v1.8.0
|
||||
```
|
||||
|
||||
Next: [Configuring kubectl for Remote Access](10-configuring-kubectl.md)
|
||||
|
|
|
|||
|
|
@ -69,10 +69,10 @@ kubectl get nodes
|
|||
> output
|
||||
|
||||
```
|
||||
NAME STATUS AGE VERSION
|
||||
worker-0 Ready 7m v1.7.4
|
||||
worker-1 Ready 4m v1.7.4
|
||||
worker-2 Ready 1m v1.7.4
|
||||
NAME STATUS ROLES AGE VERSION
|
||||
worker-0 Ready <none> 2m v1.8.0
|
||||
worker-1 Ready <none> 2m v1.8.0
|
||||
worker-2 Ready <none> 2m v1.8.0
|
||||
```
|
||||
|
||||
Next: [Provisioning Pod Network Routes](11-pod-network-routes.md)
|
||||
|
|
|
|||
|
|
@ -43,7 +43,7 @@ done
|
|||
List the routes in the `kubernetes-the-hard-way` VPC network:
|
||||
|
||||
```
|
||||
gcloud compute routes list --filter "network kubernetes-the-hard-way"
|
||||
gcloud compute routes list --filter "network: kubernetes-the-hard-way"
|
||||
```
|
||||
|
||||
> output
|
||||
|
|
|
|||
|
|
@ -100,13 +100,13 @@ curl --head http://127.0.0.1:8080
|
|||
|
||||
```
|
||||
HTTP/1.1 200 OK
|
||||
Server: nginx/1.13.3
|
||||
Date: Thu, 31 Aug 2017 01:58:15 GMT
|
||||
Server: nginx/1.13.5
|
||||
Date: Mon, 02 Oct 2017 01:04:20 GMT
|
||||
Content-Type: text/html
|
||||
Content-Length: 612
|
||||
Last-Modified: Tue, 11 Jul 2017 13:06:07 GMT
|
||||
Last-Modified: Tue, 08 Aug 2017 15:25:00 GMT
|
||||
Connection: keep-alive
|
||||
ETag: "5964cd3f-264"
|
||||
ETag: "5989d7cc-264"
|
||||
Accept-Ranges: bytes
|
||||
```
|
||||
|
||||
|
|
@ -132,7 +132,7 @@ kubectl logs $POD_NAME
|
|||
> output
|
||||
|
||||
```
|
||||
127.0.0.1 - - [31/Aug/2017:01:58:15 +0000] "HEAD / HTTP/1.1" 200 0 "-" "curl/7.54.0" "-"
|
||||
127.0.0.1 - - [02/Oct/2017:01:04:20 +0000] "HEAD / HTTP/1.1" 200 0 "-" "curl/7.54.0" "-"
|
||||
```
|
||||
|
||||
### Exec
|
||||
|
|
@ -148,7 +148,7 @@ kubectl exec -ti $POD_NAME -- nginx -v
|
|||
> output
|
||||
|
||||
```
|
||||
nginx version: nginx/1.13.3
|
||||
nginx version: nginx/1.13.5
|
||||
```
|
||||
|
||||
## Services
|
||||
|
|
@ -195,13 +195,13 @@ curl -I http://${EXTERNAL_IP}:${NODE_PORT}
|
|||
|
||||
```
|
||||
HTTP/1.1 200 OK
|
||||
Server: nginx/1.13.3
|
||||
Date: Thu, 31 Aug 2017 02:00:21 GMT
|
||||
Server: nginx/1.13.5
|
||||
Date: Mon, 02 Oct 2017 01:06:11 GMT
|
||||
Content-Type: text/html
|
||||
Content-Length: 612
|
||||
Last-Modified: Tue, 11 Jul 2017 13:06:07 GMT
|
||||
Last-Modified: Tue, 08 Aug 2017 15:25:00 GMT
|
||||
Connection: keep-alive
|
||||
ETag: "5964cd3f-264"
|
||||
ETag: "5989d7cc-264"
|
||||
Accept-Ranges: bytes
|
||||
```
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue