Trending questions in DevOps & Agile

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NB: JAVA_HOME should point to a JDK not a JRE The JAVA_HOME environment variable is not defined correctly

Hi@akhtar, You may get this error if you ...READ MORE

Jun 4, 2020 in DevOps & Agile by MD
 • 95,440 points • 18,401 views
+1 vote
1 answer

Caused: java.io.IOException: Cannot run program "sh" (in directory "D:\myjenkins\workspace\cal"): CreateProcess error=2, The system cannot find the file specified

Hi@akhtar, You got this error because the commands ...READ MORE

May 29, 2020 in Jenkins by MD
 • 95,440 points • 18,490 views
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1 answer

Error:Failed to start redis.service Unit redis-server.service is masked

Hello, If redis.service file is missed in directory path /etc/systemd/system/redis.service so we ...READ MORE

May 18, 2020 in Docker by Niroj
 • 82,880 points • 18,980 views
0 votes
1 answer

JNLP agent port is disabled and agents cannot connect this way. Go to security configuration screen and change it.

Hi@MD, By default JNLP agent port is disabled ...READ MORE

May 29, 2020 in Jenkins by akhtar
 • 38,230 points • 18,349 views
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1 answer

How to install HELM in Windows?

Hi@akhtar, You can follow the below-given steps to ...READ MORE

Jul 6, 2020 in Kubernetes by MD
 • 95,440 points • 16,610 views
0 votes
1 answer

"msg": "Failed to connect to the host via ssh: root@192.168.0.179: Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password).",

Hi@akhtar, You need to pass the username and ...READ MORE

Jul 28, 2020 in Ansible by MD
 • 95,440 points • 15,662 views
0 votes
1 answer

"msg": "winrm or requests is not installed: No module named winrm"

Hi@akhtar, You need to install pywinrm module in ...READ MORE

Sep 8, 2020 in Ansible by MD
 • 95,440 points • 13,677 views
0 votes
1 answer

How to increase no of executors in Jenkins?

Hi@akhtar, By default Jenkins has 2 executors. But ...READ MORE

May 13, 2020 in Jenkins by MD
 • 95,440 points • 18,782 views
+1 vote
1 answer

How to restart Jenkins manually?

Hi@akhtar, To restart Jenkins manually, you can use ...READ MORE

Oct 22, 2020 in Jenkins by MD
 • 95,440 points • 11,711 views
0 votes
1 answer

How to run firefox inside docker container?

Hi@akhtar, Generally, if you run firefox inside docker ...READ MORE

Apr 16, 2020 in Docker by MD
 • 95,440 points • 19,396 views
0 votes
1 answer

How to enable SSH inside Docker container?

Hi@akhtar, To enable SSH inside Docker Container, you ...READ MORE

Jun 4, 2020 in Docker by MD
 • 95,440 points • 17,256 views
0 votes
2 answers

ERROR! Unexpected Exception, this is probably a bug: HTTP Error 400: Bad Request

When you get the 400 number, that ...READ MORE

Feb 9, 2022 in Ansible by Soham
 • 9,700 points • 2,007 views
0 votes
1 answer

iptables v1.6.0: can't initialize iptables -F: Permission denied (you must be root)

Hi@akhtar, You may get this error, if you didn't ...READ MORE

May 12, 2020 in Docker by MD
 • 95,440 points • 18,020 views
0 votes
1 answer

How to capture the output of a task in Ansible Playbook?

Hi@akhtar, Ansible registers module used to capture/store the ...READ MORE

Aug 2, 2020 in Ansible by MD
 • 95,440 points • 14,409 views
0 votes
1 answer

How to check the syntax of an Ansible playbook?

Hi@akhtar, Ansible has lots of commands, that help ...READ MORE

Sep 15, 2020 in Ansible by MD
 • 95,440 points • 12,145 views
+1 vote
1 answer

"error loading config from \"prometheus.yml\": couldn't load configuration (--config.file=\"prometheus.yml\"): parsing YAML file prometheus.yml: yaml: unmarshal errors:"

Hi@akhtar, Whenever you add any node to scrape ...READ MORE

May 27, 2020 in DevOps & Agile by MD
 • 95,440 points • 16,862 views
0 votes
1 answer

No match for argument: ansible Error: Unable to find a match

Hi@akhtar, Ansible is not part of your RedHat ...READ MORE

Jul 28, 2020 in Ansible by MD
 • 95,440 points • 14,218 views
0 votes
1 answer

Error reading config file (/etc/ansible/ansible.cfg): File contains no section headers.

Hi@akhtar, You need to add one tag in ...READ MORE

Jul 28, 2020 in Ansible by MD
 • 95,440 points • 14,156 views
+2 votes
6 answers

Jenkins unable to run jobs (pending - waiting for next executor)

Increase the number of executors. I had ...READ MORE

Apr 24, 2019 in Jenkins by Maya
 • 39,966 views
0 votes
1 answer

"The task includes an option with an undefined variable. The error was: 'item' is undefined\n\nThe error appears to be in '/root/haproxy/user.yml':

Hi@akhtar, You can perform iterate tasks in Ansible ...READ MORE

Sep 1, 2020 in Ansible by MD
 • 95,440 points • 12,441 views
0 votes
1 answer

What is the difference between bridge network and overlay network?

Hi@akhtar, The Bridge is the default network driver. If ...READ MORE

Dec 28, 2020 in Docker by MD
 • 95,440 points • 7,321 views
0 votes
1 answer

How to configure Jenkins to run on port 80?

Hi@akhtar, You can change the port no from ...READ MORE

Oct 26, 2020 in Jenkins by MD
 • 95,440 points • 10,014 views
0 votes
1 answer

How to overwrite the content of a file in remote systems using Ansible playbook?

Hi@akhtar, You can find one argument in the ...READ MORE

Aug 2, 2020 in Ansible by MD
 • 95,440 points • 13,367 views
+2 votes
1 answer

Error response from daemon: This node is already part of a swarm. Use "docker swarm leave" to leave this swarm and join another one.

Hi@akhtar, It is showing in the error that you ...READ MORE

Dec 24, 2020 in Docker by MD
 • 95,440 points • 6,987 views
0 votes
1 answer

How to give sudo power to the Jenkins user?

Hi@akhtar, You need to give Sudo power to ...READ MORE

Oct 26, 2020 in Jenkins by MD
 • 95,440 points • 9,429 views
+2 votes
1 answer

error: no configuration has been provided, try setting KUBERNETES_MASTER environment variable

Hi@akhtar, When you try to connect your kubernetes ...READ MORE

May 19, 2020 in Kubernetes by MD
 • 95,440 points • 16,215 views
+1 vote
1 answer

Difference between git add -A and git add . command.

Hi@akhtar, The difference lies in which files get ...READ MORE

Dec 22, 2020 in Git & GitHub by MD
 • 95,440 points • 6,855 views
0 votes
5 answers

Error saying "Unable to connect to the server: x509: certificate signed by unknown authority"

export KUBECONFIG=/etc/kubernetes/admin.conf READ MORE

Jul 27, 2019 in Kubernetes by aneesh ansari
 • 35,105 views
0 votes
1 answer

How to skip execution of a task in ansible playbook ??

Define tags...  Then while running playbook use --skip-tags. READ MORE

Sep 30, 2020 in Ansible by Adil
 • 10,210 views
0 votes
1 answer

error on branch master nothing to commit, working directory clean, when try to commit my changes.

Hi@akhtar,  If you already have a .git/ folder ...READ MORE

Apr 10, 2020 in Git & GitHub by MD
 • 95,440 points • 17,631 views
0 votes
1 answer

[WARNING]: The input ******** appears not to have been hashed. The '********' argument must be encrypted for this module to work properly.

Hi@akhtar, You need to use the hash to ...READ MORE

Sep 1, 2020 in Ansible by MD
 • 95,440 points • 11,316 views
0 votes
1 answer

How to compare two files using Ansible?

Hi@akhtar, You can use the copy module in ...READ MORE

Sep 17, 2020 in Ansible by MD
 • 95,440 points • 10,482 views
0 votes
1 answer

How to copy multiple files to remote system using Ansible Playbook?

Hi@akhtar, You can use the copy module in ...READ MORE

Sep 16, 2020 in Ansible by MD
 • 95,440 points • 10,344 views
0 votes
1 answer

How to run a cron job using Ansible Playbook?

Hi@akhtar, You can use a module named Cron ...READ MORE

Sep 29, 2020 in Ansible by MD
 • 95,440 points • 9,771 views
0 votes
0 answers

nrpe error while installing Nagios xi

Hi, i am getting the following error ...READ MORE

Apr 30, 2021 in Nagios by anonymous
 • 19,610 points • 543 views
0 votes
1 answer

How to pull a docker image using Ansible playbook?

Did you try using this? https://docs.ansible.com/ansible/latest/colle ...READ MORE

Nov 5, 2020 in Ansible by undermink
 • 10,081 views
+1 vote
1 answer

master -> master (non-fast-forward) error: failed to push some refs to 'git@github.com:abc70/new.git'

Hi@akhtar, To update your local repo to GitHub ...READ MORE

Feb 14, 2020 in Git & GitHub by MD
 • 95,440 points • 19,461 views
0 votes
2 answers

What are the prerequisites required to learn Kubernetes?

Pre-requistic knowledge you requires before get started ...READ MORE

Oct 13, 2020 in DevOps & Agile by vivek kumar sahu
 • 11,938 views
0 votes
2 answers

how to execute a shell script post build step in Jenkins?

You could use the Post Build Task Plugin ...READ MORE

Jul 31, 2019 in Jenkins by Sirajul
 • 59,230 points • 28,592 views
0 votes
1 answer

How can I install systemctl tool in Docker container?

Hi@akhtar, In docker container if you want to ...READ MORE

Feb 5, 2020 in Docker by MD
 • 95,440 points • 19,646 views
0 votes
1 answer

How to run a playbook from a specific task in Ansible?

Hi@akhtar, The --start-at-task option allows you to start ...READ MORE

Sep 15, 2020 in Ansible by MD
 • 95,440 points • 9,966 views
0 votes
1 answer

"msg": "Could not find or access 'home.html'\on the Ansible Controller.\nIf you are using a module and expect the file to exist on the remote, see the remote_src option"

Hi@akhtar, I think your file does not have ...READ MORE

Jul 30, 2020 in Ansible by MD
 • 95,440 points • 11,746 views
0 votes
1 answer

How to change vault password in Ansible?

Hi@akhtar, You can use rekey keyword in your ...READ MORE

Aug 11, 2020 in Ansible by MD
 • 95,440 points • 11,190 views
0 votes
1 answer

Changing Jenkins workspace

By default, your Jenkins workspace would be ...READ MORE

May 15, 2019 in Jenkins by Kapil
 • 30,661 views
0 votes
1 answer

docker: driver failed programming external connectivity on endpoint webserver

Hi@akhtar, I also faced the same issue, when ...READ MORE

Jul 29, 2020 in Docker by MD
 • 95,440 points • 11,586 views
0 votes
1 answer

Merge/Append two files into single file and ensure no duplicate entries are found using Ansible

Hi@Jp, You need to create your own customized ...READ MORE

Sep 17, 2020 in Ansible by MD
 • 95,440 points • 9,406 views
0 votes
1 answer

How can we publish html test reports in azure devops build results?

This might help you. Have a look ...READ MORE

Oct 12, 2020 in DevOps on Cloud by Kriti
edited Oct 27, 2021 by Sarfaraz • 8,308 views
0 votes
1 answer

How to remove a worker node from the docker swarm cluster?

Hi@akhtar, To remove a worker node from the ...READ MORE

Dec 24, 2020 in Docker by MD
 • 95,440 points • 5,140 views
0 votes
1 answer

Job for docker.service failed because the control process exited with error code.

Hi@akhtar, Before starting your docker service check if ...READ MORE

Apr 14, 2020 in Docker by MD
 • 95,440 points • 16,112 views
0 votes
1 answer

How to get the API Token for Jenkins?

Hi@akhtar, You can find the API key from ...READ MORE

Oct 26, 2020 in Jenkins by MD
 • 95,440 points • 7,710 views
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