148422597X Kubernetes Management Design Patterns [Vohra 2017-01-29] {E559F6BB}

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Chapter 15 ■ Using an HA Master with OpenShiftConfiguring AnsibleSome of the Ansible configuration settings may be modified in the /etc/ansible/ansible.cfgconfiguration file. We need to modify some of these settings for OpenShift Ansible. Open the /etc/ansible/ansible.cfg file in a vi editor.sudo vi /etc/ansible/ansible.cfgAdd/modify the following settings in the [defaults] header.sudo= yesask_sudo_pass=Falseask_pass=Falseremote_user = centoshost_key_checking = Falsetimeout=0private_key_file= ~/docker.pemSome of the settings are shown in ansible.cfg in Figure 15-8.Figure 15-8. Configuring ansible.cfg342
Chapter 15 ■ Using an HA Master with OpenShiftThese properties are spread out throughout the file and are not collocated, as shown in Figure 15-9.Figure 15-9. The ansible.cfg configuration properties are not collocatedThe default inventory file used by Ansible is /etc/ansible/hosts, which is used to configure thehosts for the OpenShift master nodes, worker nodes, etcd nodes, and LoadBalancer node. Open the /etc/ansible/hosts file in a vi editor.sudo vi /etc/ansible/hostsAt the top of the file configure the following:[OSEv3:children]mastersetcdlbnodesNext, specify some variables:[OSEv3:vars]ansible_user=centosansible_sudo=truedeployment_type=originansible_ssh_private_key_file=~/docker.pemThe top section of the /etc/ansible/hosts file is shown in Figure 15-10.343
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KubernetesManagementDesign Patterns
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Kubernetes Management Design Patter
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■ CONTENTS AT A GLANCE■Part
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■ CONTENTSSetting Up Cluster Para
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■ CONTENTS■Chapter ■ 6: Us
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■ CONTENTSOvercommitting Resou
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■ CONTENTSInstalling OpenShift
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About the Technical ReviewerMassimo
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■ INTRODUCTIONpatterns are lan
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■ INTRODUCTIONIn Chapter 3 we
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CHAPTER 1Kubernetes on AWSKubernete
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Chapter 1 ■ Kubernetes on AWSIn t
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Chapter 1 ■ Kubernetes on AWSUsin
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Chapter 1 ■ Kubernetes on AWSClic
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Chapter 1 ■ Kubernetes on AWSFigu
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Testing the ClusterChapter 1 ■ Ku
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CHAPTER 2Kubernetes on CoreOS on AW
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Chapter 2 ■ Kubernetes on CoreOS
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Customizing the ClusterChapter 2
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Chapter 3 ■ Kubernetes on Google
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PART IIAdministration andConfigurat
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Chapter 4 ■ Using Multiple ZonesS
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Chapter 6 ■ Using VolumesPodDocke
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Chapter 7 ■ Using ServicesAnother
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Chapter 7 ■ Using ServicesCreatin
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Chapter 7 ■ Using ServicesSimilar
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Chapter 7 ■ Using ServicesList th
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Chapter 7 ■ Using ServicesFigure
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Chapter 7 ■ Using ServicesInvoke
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Chapter 7 ■ Using ServicesIn addi
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Chapter 8 ■ Using Rolling Updates
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Chapter 10 ■ Configuring Compute
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Chapter 11 ■ Using ConfigMapsIn t
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CHAPTER 12Using Resource QuotasIn C
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Chapter 12 ■ Using Resource Quota
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■ INDEXClusters (cont.)configurat
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■ INDEXKubernetes (cont.)nodes, 6
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■ INDEXRoute 53 service (cont.)de
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