All Questions

0
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0answers
1 view

Do I need an orchestration tool to autoscale/scale on demand my web service?

I have a stateless web service running in a Docker container. The web service is single threaded. We would like to span new instances of the service when the load reaches a given threshold. Is that a ...
0
votes
0answers
3 views

Best practice for installing new jenkins server

When creating a fresh new Jenkins server is it better to install it on a VM or Docker? I know that for most situations when you want just one bit of software on a server the answer would be Docker. ...
0
votes
1answer
6 views

Is “running several Linux distributions on the same host” a good justifiction for container adoption?

I need to justify container adoption. I have several solid arguments, but one is making me dubious. Is it correct to say software can "run better" or "worst" depending on the Linux distribution? Here ...
0
votes
0answers
2 views

How to add LDAP group for ssh access by ansible playbook?

I have LDAP Group. superproduct1 In LDAP Group has some users: developer1, tester1, analitic1, project1 I want to create ansible playbook for add LDAP group to SSH access on host. Found only ...
-1
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0answers
3 views

Jupyter Notebook classroom tooling

we are a group of students looking to design a better tool for the use and sharing of Jupyter Notebooks in the computer science classroom environment. For many of the beginning classrooms, it is a ...
1
vote
1answer
7 views

Can someone explain what a “system engineer practicing DevOps” means?

In the comments section of this answer, it’s explained that the asker is a “(system) engineer practicing DevOps” not a DevOps engineer, and this it is an “important distinction” not often understood. ...
0
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0answers
5 views

Chef vs Ansible: will configuration be applied if connection is lost during configuration pulling/pushing?

Scenario Configuration management tools like Ansible or Chef often ha a master/controlling machine and the machines they controlled (agents). What if the connection between master and agents is ...
0
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0answers
4 views

Maintaining Jenkins configuration with docker

I'm trying to configure CI with Jenkins for my private project. Problem: whenever I start building a pipeline project, it gives me ,,Docker is not found'' error whenever I try to work around this by ...
0
votes
0answers
4 views

Puppet Razor broker installation is failing post to OS installation

am using razor to provision centos, I have create separate network with dhcp server, pxe server, tftp server, razor server and target machine. Centos is getting installed on target machine when node ...
0
votes
1answer
15 views

Understand GitLab CI/CD better

Did I understand this correctly, that stages will run in parallel if they have the same name? stages: - build rust-latest: stage: build image: rust:latest script: - apt-get update &&...
0
votes
0answers
4 views

Rollup status from task to story to feature in Azure Devops?

Are there any extensions that let you rollup issue status across a hierarchy? For example, if I have a story where all it's tasks go to Resolved, then the story is set automatically to Resolved? ...
0
votes
1answer
10 views

How can I achieve better load balancing of different systems on a Jenkins?

We have four test machines spread over a Jenkins. We would like to have a better distribution. Example: If machine one is running with a test job, the second job should detect that node one is ...
0
votes
1answer
10 views

Jenkins: Gradle daemon closes unexpectedly

I am running Jenkins (ver: 2.150.3) with gradle (ver: 4.1) I am getting an error that says the gradle daemon closed unexpectedly. Google says it would most likely be gradle running out of memory. So ...
0
votes
0answers
15 views

Jenkins can't run ansible playbook

Unable to run ansible playbook invoked from Jenkins. I am getting Error the playbook: /var/lib/jenkins/roles/tomcat/main.yml not be found. But it is there in the server. I have invoked Ansible ...
0
votes
0answers
5 views

GuardDuty Default severities are they static values

looking to deploy Guardduty and I not the the AWS doc have a default severity for each finding Low-Medium-High, I'm assuming these default severity map directly to: High:7.0 to 8.9 range Medium:4.0 to ...
0
votes
0answers
9 views

Nginx ingress controller failed to run

I'm trying to deploy nginx-ingress controller in my own server without load balancer and cloud provider. I did the following steps: apiVersion: v1 kind: Namespace metadata: name: ingress-nginx ...
-1
votes
0answers
10 views

Convert Jenkins job DSL to pipeline groovy

Here is the sample code: out.println "-------------------------" def param = params['Project'].toString() out.println 'foo ' + param + ' project: ' out.println 'Checkout a source code and post it ...
-1
votes
0answers
12 views

Serverless App Architecture & Data Flow

I'm not sure if I am asking the question in the "right" StackExchange site but I have a very specific serverless application design question. The image below is how my application is planned to be ...
1
vote
1answer
27 views

How to move a containerized application to a different host?

We have a forum application made of two containers: a container for the database, and another one for the bulletin board application itself. Both containers are running on the same host for quite some ...
0
votes
0answers
28 views

How to run multiple containers with port expose

I have 2 images on my docker toolbox, for jenkins and for artifactory. I can use the command "run" for each to create a running container, jenkins on port 8080 and artifactory on oprt 8081, using the -...
-2
votes
0answers
22 views

Site Reliability Engineering in Practice [on hold]

I am an Acquisition Editor for Videos with Packt Publishing. I'm particularly looking for an author to create video tutorials with us on Site Reliability Engineering in Practice. It would be a ...
1
vote
0answers
19 views

Next “big thing” in the virtual infrustucture?

Are there actually some emerging but not hyped cloud technologies to watch for? I mean, cloud solutions we use have been there since some years, but as they came out, they had been around for some ...
1
vote
1answer
19 views

Is there any motivation to achieve SixSigma or similar in DevOps?

According to SixSigma quality level, you would succeed in 0.99966% of all iterations of same process repeated many times. A six sigma process is one in which 99.99966% of all opportunities to ...
0
votes
0answers
10 views

Is K8S dashboard recommended for production ready server?

I saw many tutorials show how to setup k8s dashboard UI for development which will be access from localhost. Can it be used for production server too? If yes, how to setup it on production master ...
0
votes
1answer
11 views

ansible aws windows ec2 - Internal Error: this connection module does not support running commands via sudo

I am getting below error when I am trying to run one playbook which connects to Windows machine hosted on AWS EC2. I enabled winrm and win_ping worked fine but when I am invoking ansible-playbook I am ...
1
vote
0answers
18 views

Is there an alternative to setting up the whole project workspace in a Jenkinsfile

I have a ROS project for which I'm looking to use Jenkins to set up a CI system. The project has a large number of dependencies which take a long time to build (they can't be installed on the build ...
0
votes
1answer
12 views

Listing filesystem differences between a Docker image and one of its ancestors

I asked a similar question a few minutes ago, and I found the docker diff command that shows the differences in the file system between a container and its base image. But I realized afterward my need ...
1
vote
1answer
19 views

Is there a way to know which files have changed in a docker container compared to its base image?

Is there a way to know which files have changed in a docker container compared to its base image? I am looking both for file creation/modification/deletion, but also for metadata change like file ...
0
votes
1answer
14 views

How to pass HashiCorp Vault secrets(k/v passwords) to Terraform EC2 instance

How can we pass HashiCorp Vault secrets, k/v username/password and feed Terraform while its creating Ec2 instance. For example, i don't want to use in plain text variable "myvariable" { default = "...
-1
votes
0answers
10 views

Kubespray upgrade cluster fail

After upgrading Kubespray (tag v2.8.2) version 1.12.2 -> 1.12.5 there are issues. Can anyone suggest what these issues mean TASK [etcd : include_tasks] ***********************************************...
3
votes
3answers
36 views

Can we talk about “reproducible builds” when working with interpreted languages?

This is a vocabulary question. I know the concept of reproducible build as the guarantee we can build software from the sources on a different host or at a different time, but producing an end-product ...
1
vote
0answers
19 views

node js deployment on production server

I wanted to know standard process to deploy nodejs app on production. As of now I am following the process as below Pull the source code git pull git_url Install npm dependencies npm install ...
0
votes
0answers
12 views

Need to list out scenarios in which roll back is required on PROD server

I'm preparing a case-study in which I need to capture all the scenarios in which roll back might be required on PROD Server. Architecture: We are using mircoservices (springboot apps) and db. What I ...
0
votes
1answer
8 views

Recommended SVN branching strategy for DevOps

We are using SVN as our version control system and we are using the below standard layout for our projects. Tags Branches Trunk Trunk: -> Trunk will always hold the latest code changes. ...
0
votes
1answer
16 views

Jenkins is running as a docker image in a kubernetes cluster and won't come up due to plugin version incompatibility

We are running Jenkins as a docker image in a kubernetes cluster. However it does not come up any more because of some plugin version incompatibility. How can we upgrade the plugins, or disable them ...
0
votes
3answers
35 views

Auto-scaling, how to securely get code from private repo

I want to setup an auto-scaling configuration but cannot think how I can securely get code from a private repo when I spin up new instances. I obviously don't want to put passwords in startup scripts,...
1
vote
3answers
24 views

docker-compose.yml - make network name configurable via environment variable

I have a docker compose file with env variables for stage specific configurations. As long as env variables are used in values in docker-compose.yml everything is fine, but the problem is with the ...
0
votes
0answers
9 views

Application monitoring on cloud foundry

On Pivotal cloud foundry, cf env <app_name> gives JSON data about the environment of each app deployed on bosh instance For example: On every cf push with updated manifest.yml that has env: ...
0
votes
0answers
11 views

branch restrictions in bitbucket

we use bitbucket as a VCS at work, couple days ago i noticed a typo with one of the branches which was causing build failures so I created another branch (with the correct name) and made the first ...
0
votes
0answers
8 views

Keeping graphs of terminated Kubernetes pods in Prometheus/Grafana

I love using Prometheus/Grafana to monitor and tune resource usage on my Kubernetes clusters. When pods are terminated, however, the graphs are disposed of it seems. I am looking for a solution to ...
0
votes
0answers
4 views

Azure Pipelines with Bitbucket “unresolved user”

I'm using Azure Pipelines to build a Node.JS project hosted in Bitbucket. I've enabled continuous integration and everything works fine, except for the fact that Azure doesn't recognise the Bitbucket ...
0
votes
1answer
13 views

Is there an elegant way to use a Dockerfile argument to tag an image?

I use and argument (ARG) in my Dockerfile to download a particular version of an application. I would like to tag my image with that version number. I end up writing something like that: sh$ ...
0
votes
0answers
22 views

Zero downtime deployments for multiple api backends

Question: How can I achieve a zero downtime deployment of my php application to my two backend servers, that are sitting behind a nginx load balancer? Reason The application powers an API for a ...
2
votes
1answer
31 views

Docker image two-steps build

I have a third party PHP application to install in a container. The application is shipped without its dependencies. There is a provided script to automate dependency installation, but it relies on a ...
0
votes
0answers
13 views

How to define a salt variable with two or more inputs from Jenkins parameter?

I am defining a variable in Jenkins pipeline script as: USER = "xx-yy-${Target}-zzz" Here ${Target} is from a Jenkins comma separated parameters (server1,server2). properties([ parameters([ ...
0
votes
0answers
15 views

Maven dependencies that are downloaded not available in Artifactory server

I have the following repositories structure created in my newly installed artifactory instance. And we are using this artifactory instance to store the maven artifacts. Most of our projects are in ...
0
votes
2answers
55 views

Connecting GitHub to Jenkins running on docker toolbox

Started to learn DevOps 3 days ago, so I have a lot to learn! I have a jenkins running on docker toolbox container and I can access it via 192.168.99.100:8080. I configured a job and managed to use "...
0
votes
0answers
24 views

On which interface/ip should docker containers communicate?

I have a web server and a mysql server setup in docker composer: services: db: .... networks: - bnet web: .... networks: -bnet networks: bnet: It works fine if web connects to mysql ...
0
votes
2answers
26 views

Tomcat Restart from jenkins

I want to stop tomcat using jenkins. Tomcat is running as a seperate application server, I want to restart it using Jenkins console.
0
votes
1answer
19 views

How to setup Azure DevOps Pipelines and Releases with multiple apps

Wanting to deploy a collection of .NET Core API's (microservices) using Azure DevOps I run into some challenges: Having 10+ small API's, how should I setup the Release Pipeline? One pipeline with one ...

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