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ansible playbook to install kubernetes for devbox on ubuntu
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| # | |
| # This playbook installs kubernetes on the local host for development purposes | |
| # only. This assumes there is a local docker daemon running, and that docker | |
| # doesn't use the latest "overlay2" filesystem driver (which kubernetes doesn't | |
| # support). | |
| # | |
| # Should work on Ubuntu 16.04, in theory, and was tested on 17.04. | |
| # | |
| - hosts: all | |
| connection: local | |
| tasks: | |
| - name: check if kubernetes is installed | |
| stat: path=/etc/kubernetes/admin.conf | |
| register: admin_conf | |
| - apt_key: | |
| url: "https://packages.cloud.google.com/apt/doc/apt-key.gpg" | |
| state: present | |
| become: yes | |
| when: not admin_conf.stat.exists | |
| - apt_repository: | |
| repo: deb http://apt.kubernetes.io/ kubernetes-xenial main | |
| state: present | |
| become: yes | |
| when: not admin_conf.stat.exists | |
| - apt: | |
| name: "{{item}}" | |
| become: yes | |
| with_items: | |
| - kubelet | |
| - kubeadm | |
| - kubectl | |
| - kubernetes-cni | |
| when: not admin_conf.stat.exists | |
| - lineinfile: | |
| dest: /etc/systemd/system/kubelet.service.d/10-kubeadm.conf | |
| state: absent | |
| regexp: '^Environment="KUBELET_NETWORK_ARGS' | |
| become: yes | |
| when: not admin_conf.stat.exists | |
| - command: kubeadm init | |
| become: yes | |
| when: not admin_conf.stat.exists | |
| - file: | |
| path: "/{{ansible_env.HOME}}/.kube" | |
| state: directory | |
| mode: 0700 | |
| - command: cp {{ansible_env.HOME}}/.kube/config {{ansible_env.HOME}}/.kube/config.backup | |
| ignore_errors: yes | |
| - command: cp /etc/kubernetes/admin.conf {{ansible_env.HOME}}/.kube/config | |
| become: yes | |
| - file: path="{{ansible_env.HOME}}/.kube/config" owner="{{ansible_env.USER}}" | |
| become: yes | |
| - command: kubectl taint nodes --all node-role.kubernetes.io/master- | |
| ignore_errors: yes | |
| # https://github.com/kubernetes/kubernetes/issues/45828 | |
| - command: kubectl -n kube-system create configmap kube-dns --from-literal=upstreamNameservers='["dns server ip here"]' | |
| ignore_errors: yes | |
| - command: kubectl -n kube-system edit configmap kube-dns | |
| - command: kubectl -n kube-system delete pod -l k8s-app=kube-dns |
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ansible-playbook kubeadm-devbox.yaml -v
Using /etc/ansible/ansible.cfg as config file
PLAY [all] ***************************************************************************************************************************************************
TASK [Gathering Facts] ***************************************************************************************************************************************
ok: [localhost]
TASK [check if kubernetes is installed] **********************************************************************************************************************
ok: [localhost] => {"changed": false, "stat": {"exists": false}}
TASK [apt_key] ***********************************************************************************************************************************************
ok: [localhost] => {"changed": false}
TASK [apt_repository] ****************************************************************************************************************************************
ok: [localhost] => {"changed": false, "repo": "deb http://apt.kubernetes.io/ kubernetes-xenial main", "state": "present"}
TASK [apt] ***************************************************************************************************************************************************
changed: [localhost] => (item=[u'kubelet', u'kubeadm', u'kubectl', u'kubernetes-cni']) => {"cache_update_time": 1535341440, "cache_updated": false, "changed": true, "item": ["kubelet", "kubeadm", "kubectl", "kubernetes-cni"], "stderr": "", "stderr_lines": [], "stdout": "Reading package lists...\nBuilding dependency tree...\nReading state information...\nThe following extra packages will be installed:\n cri-tools ebtables socat\nThe following NEW packages will be installed:\n cri-tools ebtables kubeadm kubectl kubelet kubernetes-cni socat\n0 upgraded, 7 newly installed, 0 to remove and 7 not upgraded.\nNeed to get 53.7 MB of archives.\nAfter this operation, 351 MB of additional disk space will be used.\nGet:1 http://us-east-1.ec2.archive.ubuntu.com/ubuntu/ trusty-updates/main ebtables amd64 2.0.10.4-3ubuntu1.14.04.2 [77.2 kB]\nGet:2 http://us-east-1.ec2.archive.ubuntu.com/ubuntu/ trusty/universe socat amd64 1.7.2.3-1 [302 kB]\nGet:3 http://apt.kubernetes.io/ kubernetes-xenial/main cri-tools amd64 1.11.0-00 [5309 kB]\nGet:4 http://apt.kubernetes.io/ kubernetes-xenial/main kubernetes-cni amd64 0.6.0-00 [5910 kB]\nGet:5 http://apt.kubernetes.io/ kubernetes-xenial/main kubelet amd64 1.11.2-00 [23.2 MB]\nGet:6 http://apt.kubernetes.io/ kubernetes-xenial/main kubectl amd64 1.11.2-00 [9394 kB]\nGet:7 http://apt.kubernetes.io/ kubernetes-xenial/main kubeadm amd64 1.11.2-00 [9420 kB]\nFetched 53.7 MB in 3s (13.7 MB/s)\nSelecting previously unselected package cri-tools.\n(Reading database ... 147853 files and directories currently installed.)\nPreparing to unpack .../cri-tools_1.11.0-00_amd64.deb ...\nUnpacking cri-tools (1.11.0-00) ...\nSelecting previously unselected package ebtables.\nPreparing to unpack .../ebtables_2.0.10.4-3ubuntu1.14.04.2_amd64.deb ...\nUnpacking ebtables (2.0.10.4-3ubuntu1.14.04.2) ...\nSelecting previously unselected package kubernetes-cni.\nPreparing to unpack .../kubernetes-cni_0.6.0-00_amd64.deb ...\nUnpacking kubernetes-cni (0.6.0-00) ...\nSelecting previously unselected package socat.\nPreparing to unpack .../socat_1.7.2.3-1_amd64.deb ...\nUnpacking socat (1.7.2.3-1) ...\nSelecting previously unselected package kubelet.\nPreparing to unpack .../kubelet_1.11.2-00_amd64.deb ...\nUnpacking kubelet (1.11.2-00) ...\nSelecting previously unselected package kubectl.\nPreparing to unpack .../kubectl_1.11.2-00_amd64.deb ...\nUnpacking kubectl (1.11.2-00) ...\nSelecting previously unselected package kubeadm.\nPreparing to unpack .../kubeadm_1.11.2-00_amd64.deb ...\nUnpacking kubeadm (1.11.2-00) ...\nProcessing triggers for man-db (2.6.7.1-1ubuntu1) ...\nProcessing triggers for ureadahead (0.100.0-16) ...\nSetting up cri-tools (1.11.0-00) ...\nSetting up ebtables (2.0.10.4-3ubuntu1.14.04.2) ...\nSetting up kubernetes-cni (0.6.0-00) ...\nSetting up socat (1.7.2.3-1) ...\nSetting up kubectl (1.11.2-00) ...\nProcessing triggers for ureadahead (0.100.0-16) ...\nSetting up kubelet (1.11.2-00) ...\nSetting up kubeadm (1.11.2-00) ...\n", "stdout_lines": ["Reading package lists...", "Building dependency tree...", "Reading state information...", "The following extra packages will be installed:", " cri-tools ebtables socat", "The following NEW packages will be installed:", " cri-tools ebtables kubeadm kubectl kubelet kubernetes-cni socat", "0 upgraded, 7 newly installed, 0 to remove and 7 not upgraded.", "Need to get 53.7 MB of archives.", "After this operation, 351 MB of additional disk space will be used.", "Get:1 http://us-east-1.ec2.archive.ubuntu.com/ubuntu/ trusty-updates/main ebtables amd64 2.0.10.4-3ubuntu1.14.04.2 [77.2 kB]", "Get:2 http://us-east-1.ec2.archive.ubuntu.com/ubuntu/ trusty/universe socat amd64 1.7.2.3-1 [302 kB]", "Get:3 http://apt.kubernetes.io/ kubernetes-xenial/main cri-tools amd64 1.11.0-00 [5309 kB]", "Get:4 http://apt.kubernetes.io/ kubernetes-xenial/main kubernetes-cni amd64 0.6.0-00 [5910 kB]", "Get:5 http://apt.kubernetes.io/ kubernetes-xenial/main kubelet amd64 1.11.2-00 [23.2 MB]", "Get:6 http://apt.kubernetes.io/ kubernetes-xenial/main kubectl amd64 1.11.2-00 [9394 kB]", "Get:7 http://apt.kubernetes.io/ kubernetes-xenial/main kubeadm amd64 1.11.2-00 [9420 kB]", "Fetched 53.7 MB in 3s (13.7 MB/s)", "Selecting previously unselected package cri-tools.", "(Reading database ... 147853 files and directories currently installed.)", "Preparing to unpack .../cri-tools_1.11.0-00_amd64.deb ...", "Unpacking cri-tools (1.11.0-00) ...", "Selecting previously unselected package ebtables.", "Preparing to unpack .../ebtables_2.0.10.4-3ubuntu1.14.04.2_amd64.deb ...", "Unpacking ebtables (2.0.10.4-3ubuntu1.14.04.2) ...", "Selecting previously unselected package kubernetes-cni.", "Preparing to unpack .../kubernetes-cni_0.6.0-00_amd64.deb ...", "Unpacking kubernetes-cni (0.6.0-00) ...", "Selecting previously unselected package socat.", "Preparing to unpack .../socat_1.7.2.3-1_amd64.deb ...", "Unpacking socat (1.7.2.3-1) ...", "Selecting previously unselected package kubelet.", "Preparing to unpack .../kubelet_1.11.2-00_amd64.deb ...", "Unpacking kubelet (1.11.2-00) ...", "Selecting previously unselected package kubectl.", "Preparing to unpack .../kubectl_1.11.2-00_amd64.deb ...", "Unpacking kubectl (1.11.2-00) ...", "Selecting previously unselected package kubeadm.", "Preparing to unpack .../kubeadm_1.11.2-00_amd64.deb ...", "Unpacking kubeadm (1.11.2-00) ...", "Processing triggers for man-db (2.6.7.1-1ubuntu1) ...", "Processing triggers for ureadahead (0.100.0-16) ...", "Setting up cri-tools (1.11.0-00) ...", "Setting up ebtables (2.0.10.4-3ubuntu1.14.04.2) ...", "Setting up kubernetes-cni (0.6.0-00) ...", "Setting up socat (1.7.2.3-1) ...", "Setting up kubectl (1.11.2-00) ...", "Processing triggers for ureadahead (0.100.0-16) ...", "Setting up kubelet (1.11.2-00) ...", "Setting up kubeadm (1.11.2-00) ..."]}
TASK [lineinfile] ********************************************************************************************************************************************
ok: [localhost] => {"backup": "", "changed": false, "found": 0, "msg": ""}
TASK [command] ***********************************************************************************************************************************************
fatal: [localhost]: FAILED! => {"changed": true, "cmd": ["kubeadm", "init"], "delta": "0:00:01.891547", "end": "2018-08-27 03:44:45.639426", "msg": "non-zero return code", "rc": 2, "start": "2018-08-27 03:44:43.747879", "stderr": "\t[WARNING Firewalld]: no supported init system detected, skipping checking for services\n\t[WARNING Service-Docker]: no supported init system detected, skipping checking for services\nI0827 03:44:44.136052 5467 kernel_validator.go:81] Validating kernel version\nI0827 03:44:44.136155 5467 kernel_validator.go:96] Validating kernel config\n\t[WARNING Service-Kubelet]: no supported init system detected, skipping checking for services\n[preflight] Some fatal errors occurred:\n\t[ERROR FileContent--proc-sys-net-bridge-bridge-nf-call-iptables]: /proc/sys/net/bridge/bridge-nf-call-iptables does not exist\n\t[ERROR FileContent--proc-sys-net-ipv4-ip_forward]: /proc/sys/net/ipv4/ip_forward contents are not set to 1\n\t[ERROR Swap]: running with swap on is not supported. Please disable swap\n\t[ERROR FileExisting-nsenter]: nsenter not found in system path\n\t[ERROR SystemVerification]: failed to get docker info: Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?\n[preflight] If you know what you are doing, you can make a check non-fatal with
--ignore-preflight-errors=...", "stderr_lines": ["\t[WARNING Firewalld]: no supported init system detected, skipping checking for services", "\t[WARNING Service-Docker]: no supported init system detected, skipping checking for services", "I0827 03:44:44.136052 5467 kernel_validator.go:81] Validating kernel version", "I0827 03:44:44.136155 5467 kernel_validator.go:96] Validating kernel config", "
t[WARNING Service-Kubelet]: no supported init system detected, skipping checking for services", "[preflight] Some fatal errors occurred:", "\t[ERROR FileConte
nt--proc-sys-net-bridge-bridge-nf-call-iptables]: /proc/sys/net/bridge/bridge-nf-call-iptables does not exist", "\t[ERROR FileContent--proc-sys-net-ipv4-ip_fo
rward]: /proc/sys/net/ipv4/ip_forward contents are not set to 1", "\t[ERROR Swap]: running with swap on is not supported. Please disable swap", "\t[ERROR File
Existing-nsenter]: nsenter not found in system path", "\t[ERROR SystemVerification]: failed to get docker info: Cannot connect to the Docker daemon at unix://
/var/run/docker.sock. Is the docker daemon running?", "[preflight] If you know what you are doing, you can make a check non-fatal with
--ignore-preflight-err ors=..."], "stdout": "[init] using Kubernetes version: v1.11.2\n[preflight] running pre-flight checks\n[preflight] The system verification failed. Printing the output from the verification:\n\u001b[0;37mKERNEL_VERSION\u001b[0m: \u001b[0;32m3.13.0-156-generic\u001b[0m\n\u001b[0;37mCONFIG_NAMESPACES\u001b[0m: \u001b
[0;32menabled\u001b[0m\n\u001b[0;37mCONFIG_NET_NS\u001b[0m: \u001b[0;32menabled\u001b[0m\n\u001b[0;37mCONFIG_PID_NS\u001b[0m: \u001b[0;32menabled\u001b[0m\n\u
001b[0;37mCONFIG_IPC_NS\u001b[0m: \u001b[0;32menabled\u001b[0m\n\u001b[0;37mCONFIG_UTS_NS\u001b[0m: \u001b[0;32menabled\u001b[0m\n\u001b[0;37mCONFIG_CGROUPS\u
001b[0m: \u001b[0;32menabled\u001b[0m\n\u001b[0;37mCONFIG_CGROUP_CPUACCT\u001b[0m: \u001b[0;32menabled\u001b[0m\n\u001b[0;37mCONFIG_CGROUP_DEVICE\u001b[0m: \u
001b[0;32menabled\u001b[0m\n\u001b[0;37mCONFIG_CGROUP_FREEZER\u001b[0m: \u001b[0;32menabled\u001b[0m\n\u001b[0;37mCONFIG_CGROUP_SCHED\u001b[0m: \u001b[0;32men
abled\u001b[0m\n\u001b[0;37mCONFIG_CPUSETS\u001b[0m: \u001b[0;32menabled\u001b[0m\n\u001b[0;37mCONFIG_MEMCG\u001b[0m: \u001b[0;32menabled\u001b[0m\n\u001b[0;3
7mCONFIG_INET\u001b[0m: \u001b[0;32menabled\u001b[0m\n\u001b[0;37mCONFIG_EXT4_FS\u001b[0m: \u001b[0;32menabled\u001b[0m\n\u001b[0;37mCONFIG_PROC_FS\u001b[0m:
\u001b[0;32menabled\u001b[0m\n\u001b[0;37mCONFIG_NETFILTER_XT_TARGET_REDIRECT\u001b[0m: \u001b[0;32menabled (as module)\u001b[0m\n\u001b[0;37mCONFIG_NETFILTER
_XT_MATCH_COMMENT\u001b[0m: \u001b[0;32menabled (as module)\u001b[0m\n\u001b[0;37mCONFIG_OVERLAYFS_FS\u001b[0m: \u001b[0;32menabled (as module)\u001b[0m\n\u00
1b[0;37mCONFIG_AUFS_FS\u001b[0m: \u001b[0;32menabled (as module)\u001b[0m\n\u001b[0;37mCONFIG_BLK_DEV_DM\u001b[0m: \u001b[0;32menabled\u001b[0m\n\u001b[0;37mO
S\u001b[0m: \u001b[0;32mLinux\u001b[0m\n\u001b[0;37mCGROUPS_CPU\u001b[0m: \u001b[0;32menabled\u001b[0m\n\u001b[0;37mCGROUPS_CPUACCT\u001b[0m: \u001b[0;32menab
led\u001b[0m\n\u001b[0;37mCGROUPS_CPUSET\u001b[0m: \u001b[0;32menabled\u001b[0m\n\u001b[0;37mCGROUPS_DEVICES\u001b[0m: \u001b[0;32menabled\u001b[0m\n\u001b[0;
37mCGROUPS_FREEZER\u001b[0m: \u001b[0;32menabled\u001b[0m\n\u001b[0;37mCGROUPS_MEMORY\u001b[0m: \u001b[0;32menabled\u001b[0m", "stdout_lines": ["[init] using
Kubernetes version: v1.11.2", "[preflight] running pre-flight checks", "[preflight] The system verification failed. Printing the output from the verification:
", "\u001b[0;37mKERNEL_VERSION\u001b[0m: \u001b[0;32m3.13.0-156-generic\u001b[0m", "\u001b[0;37mCONFIG_NAMESPACES\u001b[0m: \u001b[0;32menabled\u001b[0m", "\u
001b[0;37mCONFIG_NET_NS\u001b[0m: \u001b[0;32menabled\u001b[0m", "\u001b[0;37mCONFIG_PID_NS\u001b[0m: \u001b[0;32menabled\u001b[0m", "\u001b[0;37mCONFIG_IPC_N
S\u001b[0m: \u001b[0;32menabled\u001b[0m", "\u001b[0;37mCONFIG_UTS_NS\u001b[0m: \u001b[0;32menabled\u001b[0m", "\u001b[0;37mCONFIG_CGROUPS\u001b[0m: \u001b[0;
32menabled\u001b[0m", "\u001b[0;37mCONFIG_CGROUP_CPUACCT\u001b[0m: \u001b[0;32menabled\u001b[0m", "\u001b[0;37mCONFIG_CGROUP_DEVICE\u001b[0m: \u001b[0;32menab
led\u001b[0m", "\u001b[0;37mCONFIG_CGROUP_FREEZER\u001b[0m: \u001b[0;32menabled\u001b[0m", "\u001b[0;37mCONFIG_CGROUP_SCHED\u001b[0m: \u001b[0;32menabled\u001
b[0m", "\u001b[0;37mCONFIG_CPUSETS\u001b[0m: \u001b[0;32menabled\u001b[0m", "\u001b[0;37mCONFIG_MEMCG\u001b[0m: \u001b[0;32menabled\u001b[0m", "\u001b[0;37mCO
NFIG_INET\u001b[0m: \u001b[0;32menabled\u001b[0m", "\u001b[0;37mCONFIG_EXT4_FS\u001b[0m: \u001b[0;32menabled\u001b[0m", "\u001b[0;37mCONFIG_PROC_FS\u001b[0m:
\u001b[0;32menabled\u001b[0m", "\u001b[0;37mCONFIG_NETFILTER_XT_TARGET_REDIRECT\u001b[0m: \u001b[0;32menabled (as module)\u001b[0m", "\u001b[0;37mCONFIG_NETFI
LTER_XT_MATCH_COMMENT\u001b[0m: \u001b[0;32menabled (as module)\u001b[0m", "\u001b[0;37mCONFIG_OVERLAYFS_FS\u001b[0m: \u001b[0;32menabled (as module)\u001b[0m
", "\u001b[0;37mCONFIG_AUFS_FS\u001b[0m: \u001b[0;32menabled (as module)\u001b[0m", "\u001b[0;37mCONFIG_BLK_DEV_DM\u001b[0m: \u001b[0;32menabled\u001b[0m", "
u001b[0;37mOS\u001b[0m: \u001b[0;32mLinux\u001b[0m", "\u001b[0;37mCGROUPS_CPU\u001b[0m: \u001b[0;32menabled\u001b[0m", "\u001b[0;37mCGROUPS_CPUACCT\u001b[0m:
\u001b[0;32menabled\u001b[0m", "\u001b[0;37mCGROUPS_CPUSET\u001b[0m: \u001b[0;32menabled\u001b[0m", "\u001b[0;37mCGROUPS_DEVICES\u001b[0m: \u001b[0;32menabled
\u001b[0m", "\u001b[0;37mCGROUPS_FREEZER\u001b[0m: \u001b[0;32menabled\u001b[0m", "\u001b[0;37mCGROUPS_MEMORY\u001b[0m: \u001b[0;32menabled\u001b[0m"]}
to retry, use: --limit @/home/user/kubeadm-devbox.retry
PLAY RECAP ***************************************************************************************************************************************************
localhost : ok=6 changed=1 unreachable=0 failed=1