'ERROR !The requested handler 'docker status' was not found in either the main handlers list nor in the listening handlers list
I'm using vagrant to create a simulation of a prod cluster in which there a a master and two nodes, my vagrantfile look like this :
IMAGE_NAME = "bento/ubuntu-16.04"
N = 2
Vagrant.configure("2") do |config|
config.ssh.insert_key = false
config.vm.provider "virtualbox" do |v|
v.memory = 1024
v.cpus = 2
end
config.vm.define "k8s-master" do |master|
master.vm.box = IMAGE_NAME
master.vm.network "private_network", ip: "192.168.50.10"
master.vm.hostname = "k8s-master"
master.vm.provision "ansible" do |ansible|
ansible.playbook = "kubernetes-setup/master-playbook.yml"
ansible.extra_vars = {
node_ip: "192.168.50.10",
}
end
end
(1..N).each do |i|
config.vm.define "node-#{i}" do |node|
node.vm.box = IMAGE_NAME
node.vm.network "private_network", ip: "192.168.50.#{i + 10}"
node.vm.hostname = "node-#{i}"
node.vm.provision "ansible" do |ansible|
ansible.playbook = "kubernetes-setup/node-playbook.yml"
ansible.extra_vars = {
node_ip: "192.168.50.#{i + 10}",
}
end
end
end
end
and my master playbook look like this :
---
- hosts: all
become: true
tasks:
- name: Install packages that allow apt to be used over HTTPS
apt:
name: "{{ packages }}"
state: present
update_cache: yes
vars:
packages:
- apt-transport-https
- ca-certificates
- curl
- gnupg-agent
- software-properties-common
- name: Add an apt signing key for Docker
apt_key:
url: https://download.docker.com/linux/ubuntu/gpg
state: present
- name: Add apt repository for stable version
apt_repository:
repo: deb [arch=amd64] https://download.docker.com/linux/ubuntu xenial stable
state: present
- name: Install docker and its dependecies
apt:
name: "{{ packages }}"
state: present
update_cache: yes
vars:
packages:
- docker-ce
- docker-ce-cli
- containerd.io
notify:
- docker status
- name: Add vagrant user to docker group
user:
name: vagrant
group: docker
- name: Remove swapfile from /etc/fstab
mount:
name: "{{ item }}"
fstype: swap
state: absent
with_items:
- swap
- none
- name: Disable swap
command: swapoff -a
when: ansible_swaptotal_mb > 0
- name: Add an apt signing key for Kubernetes
apt_key:
url: https://packages.cloud.google.com/apt/doc/apt-key.gpg
state: present
- name: Adding apt repository for Kubernetes
apt_repository:
repo: deb https://apt.kubernetes.io/ kubernetes-xenial main
state: present
filename: kubernetes.list
- name: Install Kubernetes binaries
apt:
name: "{{ packages }}"
state: present
update_cache: yes
vars:
packages:
- kubelet
- kubeadm
- kubectl
- name: Configure node ip
lineinfile:
path: /etc/default/kubelet
line: KUBELET_EXTRA_ARGS=--node-ip={{ node_ip }}
- name: Restart kubelet
service:
name: kubelet
daemon_reload: yes
state: restarted
- name: Initialize the Kubernetes cluster using kubeadm
command: kubeadm init --apiserver-advertise-address="192.168.50.10" --apiserver-cert-extra-sans="192.168.50.10" --node-name k8s-master --pod-network-cidr=192.168.0.0/16
- name: Setup kubeconfig for vagrant user
command: "{{ item }}"
with_items:
- mkdir -p /home/vagrant/.kube
- cp -i /etc/kubernetes/admin.conf /home/vagrant/.kube/config
- chown vagrant:vagrant /home/vagrant/.kube/config
- name: Install calico pod network
become: false
command: kubectl create -f https://docs.projectcalico.org/v3.4/getting-started/kubernetes/installation/hosted/calico.yaml
- name: Generate join command
command: kubeadm token create --print-join-command
register: join_command
- name: Copy join command to local file
local_action: copy content="{{ join_command.stdout_lines[0] }}" dest="./join-command"
handlers:
- name: docker status
service: name=docker state=started
while the one used for the nodes is here below :
---
- hosts: all
become: true
tasks:
- name: Install packages that allow apt to be used over HTTPS
apt:
name: "{{ packages }}"
state: present
update_cache: yes
vars:
packages:
- apt-transport-https
- ca-certificates
- curl
- gnupg-agent
- software-properties-common
- name: Add an apt signing key for Docker
apt_key:
url: https://download.docker.com/linux/ubuntu/gpg
state: present
- name: Add apt repository for stable version
apt_repository:
repo: deb [arch=amd64] https://download.docker.com/linux/ubuntu xenial stable
state: present
- name: Install docker and its dependecies
apt:
name: "{{ packages }}"
state: present
update_cache: yes
vars:
packages:
- docker-ce
- docker-ce-cli
- containerd.io
notify:
- docker status
- name: Add vagrant user to docker group
user:
name: vagrant
group: docker
- name: Remove swapfile from /etc/fstab
mount:
name: "{{ item }}"
fstype: swap
state: absent
with_items:
- swap
- none
- name: Disable swap
command: swapoff -a
when: ansible_swaptotal_mb > 0
- name: Add an apt signing key for Kubernetes
apt_key:
url: https://packages.cloud.google.com/apt/doc/apt-key.gpg
state: present
- name: Adding apt repository for Kubernetes
apt_repository:
repo: deb https://apt.kubernetes.io/ kubernetes-xenial main
state: present
filename: kubernetes.list
- name: Install Kubernetes binaries
apt:
name: "{{ packages }}"
state: present
update_cache: yes
vars:
packages:
- kubelet
- kubeadm
- kubectl
- name: Configure node ip
lineinfile:
path: /etc/default/kubelet
line: KUBELET_EXTRA_ARGS=--node-ip={{ node_ip }}
- name: Restart kubelet
service:
name: kubelet
daemon_reload: yes
state: restarted
- name: Initialize the Kubernetes cluster using kubeadm
command: kubeadm init --apiserver-advertise-address="192.168.50.10" --apiserver-cert-extra-sans="192.168.50.10" --node-name k8s-master --pod-network-cidr=192.168.0.0/16
- name: Copy the join command to server location
copy: src=join-command dest=/tmp/join-command.sh mode=0777
- name: Join the node to cluster
command: sh /tmp/join-command.sh
but when I launch my vagrant everything goes well until the installation of docker task on the node where I am facing this issue :
Vagrant has automatically selected the compatibility mode '2.0'
according to the Ansible version installed (2.9.6).
Alternatively, the compatibility mode can be specified in your Vagrantfile:
https://www.vagrantup.com/docs/provisioning/ansible_common.html#compatibility_mode
node-1: Running ansible-playbook...
PLAY [all] *********************************************************************
TASK [Gathering Facts] *********************************************************
[DEPRECATION WARNING]: Distribution Ubuntu 16.04 on host node-1 should use
/usr/bin/python3, but is using /usr/bin/python for backward compatibility with
prior Ansible releases. A future Ansible release will default to using the
discovered platform python for this host. See https://docs.ansible.com/ansible/
2.9/reference_appendices/interpreter_discovery.html for more information. This
feature will be removed in version 2.12. Deprecation warnings can be disabled
by setting deprecation_warnings=False in ansible.cfg.
ok: [node-1]
TASK [Install packages that allow apt to be used over HTTPS] *******************
changed: [node-1]
[WARNING]: Updating cache and auto-installing missing dependency: python-apt
TASK [Add an apt signing key for Docker] ***************************************
changed: [node-1]
TASK [Add apt repository for stable version] ***********************************
changed: [node-1]
TASK [Install docker and its dependecies] **************************************
*****ERROR! The requested handler 'docker status' was not found in either the main handlers list nor in the listening handlers list
Ansible failed to complete successfully. Any error output should be
visible above. Please fix these errors and try again.*****
Anyone have a clue what could be the reason, I have tried to change the syntax but still I don't think it is a typo problem ?
Solution 1:[1]
As @zeitounator said in his command I forgot to add the handler part in the nodes configuration playbook, once it was added everything went well.
Sources
This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.
Source: Stack Overflow
| Solution | Source |
|---|---|
| Solution 1 | Jinja_dude |