Cat Command without Object In Container Template
i'm interested with jenkins dynamic slave in kubernetes with this repo
https://github.com/fabric8io/kubernetes-plugin
I know cat use to be followed by object, but in this template it just cat without object behind.
So what's the function of the "cat" command below?
def label = "mypod-${UUID.randomUUID().toString()}"
podTemplate(label: label, containers: [
containerTemplate(name: 'maven', image: 'maven:3.3.9-jdk-8-alpine', ttyEnabled: true, **command: 'cat'**),
containerTemplate(name: 'golang', image: 'golang:1.8.0', ttyEnabled: true, **command: 'cat'**)
]) {
______Found the answer by myself________
For you all that misunderstand and you all that downvote my question
So, the cat on that container template, is to keep the container running forever, so the container won't be recreated again when the container has been created
jenkins
kubernetes asked Nov 21 '18 at 5:14
FoosomeFoosome
285
add a comment |
i'm interested with jenkins dynamic slave in kubernetes with this repo
https://github.com/fabric8io/kubernetes-plugin
I know cat use to be followed by object, but in this template it just cat without object behind.
So what's the function of the "cat" command below?
def label = "mypod-${UUID.randomUUID().toString()}"
podTemplate(label: label, containers: [
containerTemplate(name: 'maven', image: 'maven:3.3.9-jdk-8-alpine', ttyEnabled: true, **command: 'cat'**),
containerTemplate(name: 'golang', image: 'golang:1.8.0', ttyEnabled: true, **command: 'cat'**)
]) {
______Found the answer by myself________
For you all that misunderstand and you all that downvote my question
So, the cat on that container template, is to keep the container running forever, so the container won't be recreated again when the container has been created
jenkins
kubernetes asked Nov 21 '18 at 5:14
FoosomeFoosome
285
see github.com/jenkinsci/kubernetes-plugin#constraints "Other containers must run a long running process, so the container does not exit. If the default entrypoint or command just runs something and exit then it should be overridden with something like cat with ttyEnabled: true."
– csanchez
Jan 30 at 15:27
add a comment |
i'm interested with jenkins dynamic slave in kubernetes with this repo
https://github.com/fabric8io/kubernetes-plugin
I know cat use to be followed by object, but in this template it just cat without object behind.
So what's the function of the "cat" command below?
def label = "mypod-${UUID.randomUUID().toString()}"
podTemplate(label: label, containers: [
containerTemplate(name: 'maven', image: 'maven:3.3.9-jdk-8-alpine', ttyEnabled: true, **command: 'cat'**),
containerTemplate(name: 'golang', image: 'golang:1.8.0', ttyEnabled: true, **command: 'cat'**)
]) {
______Found the answer by myself________
For you all that misunderstand and you all that downvote my question
So, the cat on that container template, is to keep the container running forever, so the container won't be recreated again when the container has been created
jenkins
kubernetes asked Nov 21 '18 at 5:14
FoosomeFoosome
285
i'm interested with jenkins dynamic slave in kubernetes with this repo
https://github.com/fabric8io/kubernetes-plugin
I know cat use to be followed by object, but in this template it just cat without object behind.
So what's the function of the "cat" command below?
def label = "mypod-${UUID.randomUUID().toString()}"
podTemplate(label: label, containers: [
containerTemplate(name: 'maven', image: 'maven:3.3.9-jdk-8-alpine', ttyEnabled: true, **command: 'cat'**),
containerTemplate(name: 'golang', image: 'golang:1.8.0', ttyEnabled: true, **command: 'cat'**)
]) {
______Found the answer by myself________
For you all that misunderstand and you all that downvote my question
So, the cat on that container template, is to keep the container running forever, so the container won't be recreated again when the container has been created
jenkins
kubernetes jenkins
kubernetes asked Nov 21 '18 at 5:14
FoosomeFoosome
285
asked Nov 21 '18 at 5:14
FoosomeFoosome
285
edited Jan 18 at 9:13
Foosome
asked Nov 21 '18 at 5:14
FoosomeFoosome
285
asked Nov 21 '18 at 5:14
FoosomeFoosome
285
asked Nov 21 '18 at 5:14
FoosomeFoosome
285
285
see github.com/jenkinsci/kubernetes-plugin#constraints "Other containers must run a long running process, so the container does not exit. If the default entrypoint or command just runs something and exit then it should be overridden with something like cat with ttyEnabled: true."
– csanchez
Jan 30 at 15:27
add a comment |
see github.com/jenkinsci/kubernetes-plugin#constraints "Other containers must run a long running process, so the container does not exit. If the default entrypoint or command just runs something and exit then it should be overridden with something like cat with ttyEnabled: true."
– csanchez
Jan 30 at 15:27
see github.com/jenkinsci/kubernetes-plugin#constraints "Other containers must run a long running process, so the container does not exit. If the default entrypoint or command just runs something and exit then it should be overridden with something like cat with ttyEnabled: true."
– csanchez
Jan 30 at 15:27
see github.com/jenkinsci/kubernetes-plugin#constraints "Other containers must run a long running process, so the container does not exit. If the default entrypoint or command just runs something and exit then it should be overridden with something like cat with ttyEnabled: true."
– csanchez
Jan 30 at 15:27
add a comment |
1 Answer
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That's the command that's executed. if you don't know what the cat command does, here's some info: http://www.linfo.org/cat.html (it's most commonly used to display files).
In the above context it's used to prove the concept of running commands in another container by displaying the piped stream.
edited Jan 18 at 9:17
gsamaras
51.6k24104189
answered Nov 21 '18 at 7:14
Markus DreschMarkus Dresch
1,702419
add a comment |
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1 Answer
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1 Answer
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active
oldest
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oldest
votes
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oldest
votes
That's the command that's executed. if you don't know what the cat command does, here's some info: http://www.linfo.org/cat.html (it's most commonly used to display files).
In the above context it's used to prove the concept of running commands in another container by displaying the piped stream.
edited Jan 18 at 9:17
gsamaras
51.6k24104189
answered Nov 21 '18 at 7:14
Markus DreschMarkus Dresch
1,702419
add a comment |
That's the command that's executed. if you don't know what the cat command does, here's some info: http://www.linfo.org/cat.html (it's most commonly used to display files).
In the above context it's used to prove the concept of running commands in another container by displaying the piped stream.
edited Jan 18 at 9:17
gsamaras
51.6k24104189
answered Nov 21 '18 at 7:14
Markus DreschMarkus Dresch
1,702419
add a comment |
That's the command that's executed. if you don't know what the cat command does, here's some info: http://www.linfo.org/cat.html (it's most commonly used to display files).
In the above context it's used to prove the concept of running commands in another container by displaying the piped stream.
edited Jan 18 at 9:17
gsamaras
51.6k24104189
answered Nov 21 '18 at 7:14
Markus DreschMarkus Dresch
1,702419
That's the command that's executed. if you don't know what the cat command does, here's some info: http://www.linfo.org/cat.html (it's most commonly used to display files).
In the above context it's used to prove the concept of running commands in another container by displaying the piped stream.
edited Jan 18 at 9:17
gsamaras
51.6k24104189
answered Nov 21 '18 at 7:14
Markus DreschMarkus Dresch
1,702419
edited Jan 18 at 9:17
gsamaras
51.6k24104189
edited Jan 18 at 9:17
gsamaras
51.6k24104189
edited Jan 18 at 9:17
gsamaras
51.6k24104189
51.6k24104189
answered Nov 21 '18 at 7:14
Markus DreschMarkus Dresch
1,702419
answered Nov 21 '18 at 7:14
Markus DreschMarkus Dresch
1,702419
answered Nov 21 '18 at 7:14
Markus DreschMarkus Dresch
1,702419
1,702419
add a comment |
add a comment |
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see github.com/jenkinsci/kubernetes-plugin#constraints "Other containers must run a long running process, so the container does not exit. If the default entrypoint or command just runs something and exit then it should be overridden with something like cat with ttyEnabled: true."
– csanchez
Jan 30 at 15:27