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1500 questions
7
votes
2 answers
Is this an appropriate architecture, or can improvements be made?
Due to a combination of business/enterprise requirements and our architect's preferences we have arrived at a particular architecture that seems a bit off to me, but I have very limited architectural knowledge and even less cloud knowledge, so I…
Marshall Tigerus
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7
votes
2 answers
How to move disk image in the command line?
As answered in this questions: Does Docker on MacOS support tmpfs? In order to run in memory docker, I need to move docker volumes to ramdisk. In macOS I can do it through docker preferences. However, I would like to write a script that could do it…
muhammad haris
- 223
- 2
- 3
7
votes
1 answer
How to pull a docker image from a private docker registry using Helm?
When the default values.yaml is inspected it is not clear how to pull a private docker image.
# Default values for sonatype-nexus-apt.
# This is a YAML-formatted file.
# Declare variables to be passed into your templates.
replicaCount: 1
image:
…
030
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- 173
7
votes
4 answers
How can successfully pre-verified changes cause regressions that should have been caught?
In a CI context one of the commonly-used measures of increasing the quality levels of the integration branch is a mandatory set of pre-commit quality verifications (typically including building some artifacts, performing unit tests and even some…
Dan Cornilescu
- 6,730
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- 19
- 44
7
votes
2 answers
What is the difference between feature flags and feature toggles (if any)?
Part of an answer to my (meta) question "Rename feature-flags to feature-toggles?" is like so:
... There's could be valid questions about feature flags (formalism, documentation about them, process of definition), which may not be related to…
Pierre.Vriens
- 7,205
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- 84
7
votes
3 answers
When your micro service in production needs a secret, where is the secret stored and retrieved from?
The context of the question is Secrets management.
How do you manage storing and retrieving secrets for your micro service which is in production?
Zvika Nadav
- 113
- 2
7
votes
2 answers
Does Immutable Servers imply no source code updates on the servers?
So once an Immutable Server is in place, nothing should change at all. Or is it only configuration.
Are source code updates acceptable on Immutable Servers?
Basil A
- 173
- 1
- 5
7
votes
2 answers
How to add shards to a Redis cluster managed by Terraform without loosing all state?
I have set up a Redis cluster with Terraform. The setup looks like this:
resource "aws_elasticache_replication_group" "instance" {
replication_group_id = "test"
node_type = "cache.t2.micro"
port =…
Philipp Claßen
- 1,675
- 2
- 16
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7
votes
1 answer
What is the impact of using Helm Deployments instead of StatefulSets for Databases like MongoDB or MySQL?
The definition of a stateless app seems to apply to database servers like MongoDB or MySQL. I found Helm Charts as a kind of template-repository for Kubernetes. However, the stable builds all use deployments. Only in the incubator, which are not…
Daniel
- 211
- 1
- 7
7
votes
2 answers
Does terraform support blue green deployments and roll backs out of the box
I have been trying use terraform for a while . any suggestions/tips on how I can handle blue green deployments . I see how terraform enables it with auto scale groups on aws . But I’d like run some Cucumber acceptance tests on the new Asg before…
Zak
- 81
- 1
- 3
7
votes
2 answers
AllowedPattern for emails in Cloudformation template
I am struggling with specifying a regular expression for email parameter of Cloudformation :
Parameters:
MyEmail :
Type: String
Description: Email for notifications
AllowedPattern: /[^\s@]+@[^\s@]+\.[^\s@]+/
ConstraintDescription:…
Abdennour TOUMI
- 271
- 2
- 11
7
votes
3 answers
What is DevOps?
Please bear with me as this might get a bit deep. I’ve been reading though some documentation of a error logging SaaS I’m using in an application I’m building.
Quite a few times they gave me the impression that DevOps is sort of the responsibility…
Rohan Büchner
- 187
- 7
7
votes
1 answer
Does Ansible have component akin to PuppetDB?
I know Puppet from (limited) experience and have noticed that in configuration management there is now a strong trend towards Ansible.
On the one hand, I understand that Ansible does not require an agent, because it makes intelligent use of ssh.
On…
Drux
- 173
- 4
7
votes
1 answer
Jenkins & Bitbucket; cancel previous build if new commit made to same branch?
We have Jenkins running unit tests when commits are made to our repo in Bitbucket. This is controlled by the Bitbucket Plugin, ie via a Bitbucket webhook.
Currently, if a commit is made to Branch A a unit test kicks off. If while that job is…
Alex
- 4,512
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7
votes
1 answer
IT staff sizing in the DevOps era - how and when would a DevOps team scale up?
Given that DevOps allows IT staff actually to downscale and do more through all the automation, what are limits to that?
That is, what are rules of thumb - if there can be any - where you would know you need more people despite rapidly progressing…
Ta Mu
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