Trending questions in DevOps & Agile

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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
• 95,460 points
20,082 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
41,516 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
• 95,460 points
15,514 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
• 95,460 points
18,742 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
• 95,460 points
17,684 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
• 95,460 points
15,117 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
• 95,460 points
15,262 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
• 9,710 points
2,406 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
• 95,460 points
12,856 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
• 95,460 points
14,514 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
• 95,460 points
8,012 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
• 95,460 points
10,763 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
• 95,460 points
13,086 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
• 95,460 points
7,792 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
• 95,460 points
7,703 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
• 95,460 points
10,203 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
36,128 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
• 95,460 points
16,812 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
• 95,460 points
18,482 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
• 95,460 points
13,146 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
• 95,460 points
11,527 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
10,884 views
0 votes
1 answer
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
• 95,460 points
11,318 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
• 95,460 points
11,276 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
10,926 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
• 95,460 points
10,462 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
29,581 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
• 95,460 points
20,170 views
0 votes
1 answer

Changing Jenkins workspace

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

May 15, 2019 in Jenkins by Kapil
31,832 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
• 95,460 points
20,311 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
12,434 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
710 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
• 95,460 points
10,263 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
• 95,460 points
17,002 views
0 votes
1 answer

How to run a script as root in Jenkins?

Hi@akhtar, You need to run the script with ...READ MORE

Oct 26, 2020 in Jenkins by MD
• 95,460 points
8,333 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 8,896 views
+2 votes
1 answer

Error: Reference to undeclared resource in terraform code

Check the vpc declaration in subnets, internet ...READ MORE

Nov 17, 2019 in Other DevOps Questions by ahmed
24,470 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
• 95,460 points
12,115 views
0 votes
1 answer

Where can I find the Jenkins artifacts?

It is being archived on the master ...READ MORE

Oct 15, 2020 in Jenkins by Kim
8,744 views
0 votes
1 answer

Error : unable to write symref for HEAD: Function not implemented

This is usually caused by a permission ...READ MORE

Oct 30, 2020 in Git & GitHub by Kim
8,100 views
0 votes
1 answer

How to change Jenkins default view?

Hi@akhtar, To change the default view in Jenkins you ...READ MORE

Oct 25, 2020 in Jenkins by MD
• 95,460 points
8,302 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
• 95,460 points
5,657 views
0 votes
1 answer

How is docker machine different from docker engine?

Docker machine is different from Docker engine ...READ MORE

Jul 4, 2019 in Docker by Sirajul
• 59,230 points
28,869 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
• 95,460 points
8,092 views
+1 vote
2 answers

[WARNING]: provided hosts list is empty, only localhost is available. Note that the implicit localhost does not match 'all'

Hey @Sitara,   I just found it is because ...READ MORE

Jan 22, 2019 in Ansible by Naina
22,998 views
0 votes
1 answer

How to remove a role from Ansible Galaxy?

Hi@akhtar, You need to log in to your ...READ MORE

Aug 28, 2020 in Ansible by MD
• 95,460 points
10,574 views
0 votes
1 answer

How to increase the Jenkins login page timeout time?

Hi@akhtar, You can change the timeout time in ...READ MORE

Oct 25, 2020 in Jenkins by MD
• 95,460 points
8,106 views