Mount configmap file onto hostpath volume
I have mounted a hostpath volume in a Kubernetes container. Now I want to mount a configmap file onto the hostpath volume.
Is that possible?
docker
kubernetes mounted-volumes asked Nov 12 '18 at 22:52
CPACPA
1,00521532
add a comment |
I have mounted a hostpath volume in a Kubernetes container. Now I want to mount a configmap file onto the hostpath volume.
Is that possible?
docker
kubernetes mounted-volumes asked Nov 12 '18 at 22:52
CPACPA
1,00521532
add a comment |
I have mounted a hostpath volume in a Kubernetes container. Now I want to mount a configmap file onto the hostpath volume.
Is that possible?
docker
kubernetes mounted-volumes asked Nov 12 '18 at 22:52
CPACPA
1,00521532
I have mounted a hostpath volume in a Kubernetes container. Now I want to mount a configmap file onto the hostpath volume.
Is that possible?
docker
kubernetes mounted-volumes docker
kubernetes mounted-volumes asked Nov 12 '18 at 22:52
CPACPA
1,00521532
asked Nov 12 '18 at 22:52
CPACPA
1,00521532
asked Nov 12 '18 at 22:52
CPACPA
1,00521532
asked Nov 12 '18 at 22:52
CPACPA
1,00521532
asked Nov 12 '18 at 22:52
CPACPA
1,00521532
1,00521532
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
Not really, a larger question would be would you'd want to do that?
The standard way to add configurations in Kubernetes is using ConfigMaps. They are stored in etcd and the size limit is 1MB. When your pod comes up the configuration is mounted on a pod mount point that you can specify in the pod spec.
You may want the opposite which is to use a hostPath that has some configuration and that's possible. Say, that you want to have some config that is larger than 1MB (which is not usual) and have your pod use it. The gotcha here is that you need to put this hostPath and the files in all your cluster nodes where your pod may start.
answered Nov 12 '18 at 23:57
RicoRico
26.5k94864
add a comment |
No. The volume mounts are all about pushing data into pods or persisting data that originates in a pod, and aren't usually a bidirectional data transfer mechanism.
If you want to see what's in a ConfigMap, you can always kubectl get configmap NAME -o yaml to dump it out.
(With some exceptions around things like the Docker socket, hostPath volumes aren't that common in non-Minikube Kubernetes installations, especially once you get into multi-host setups, and I'd investigate other paths to do whatever you're using it for now.)
answered Nov 12 '18 at 23:46
David MazeDavid Maze
11k2923
add a comment |
Your Answer
StackExchange.ifUsing("editor", function ()
StackExchange.using("externalEditor", function ()
StackExchange.using("snippets", function ()
StackExchange.snippets.init();
);
);
, "code-snippets");
StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "1"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);
else
createEditor();
);
function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader:
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
,
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);
);
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53271247%2fmount-configmap-file-onto-hostpath-volume%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
Not really, a larger question would be would you'd want to do that?
The standard way to add configurations in Kubernetes is using ConfigMaps. They are stored in etcd and the size limit is 1MB. When your pod comes up the configuration is mounted on a pod mount point that you can specify in the pod spec.
You may want the opposite which is to use a hostPath that has some configuration and that's possible. Say, that you want to have some config that is larger than 1MB (which is not usual) and have your pod use it. The gotcha here is that you need to put this hostPath and the files in all your cluster nodes where your pod may start.
answered Nov 12 '18 at 23:57
RicoRico
26.5k94864
add a comment |
Not really, a larger question would be would you'd want to do that?
The standard way to add configurations in Kubernetes is using ConfigMaps. They are stored in etcd and the size limit is 1MB. When your pod comes up the configuration is mounted on a pod mount point that you can specify in the pod spec.
You may want the opposite which is to use a hostPath that has some configuration and that's possible. Say, that you want to have some config that is larger than 1MB (which is not usual) and have your pod use it. The gotcha here is that you need to put this hostPath and the files in all your cluster nodes where your pod may start.
answered Nov 12 '18 at 23:57
RicoRico
26.5k94864
add a comment |
Not really, a larger question would be would you'd want to do that?
The standard way to add configurations in Kubernetes is using ConfigMaps. They are stored in etcd and the size limit is 1MB. When your pod comes up the configuration is mounted on a pod mount point that you can specify in the pod spec.
You may want the opposite which is to use a hostPath that has some configuration and that's possible. Say, that you want to have some config that is larger than 1MB (which is not usual) and have your pod use it. The gotcha here is that you need to put this hostPath and the files in all your cluster nodes where your pod may start.
answered Nov 12 '18 at 23:57
RicoRico
26.5k94864
Not really, a larger question would be would you'd want to do that?
The standard way to add configurations in Kubernetes is using ConfigMaps. They are stored in etcd and the size limit is 1MB. When your pod comes up the configuration is mounted on a pod mount point that you can specify in the pod spec.
You may want the opposite which is to use a hostPath that has some configuration and that's possible. Say, that you want to have some config that is larger than 1MB (which is not usual) and have your pod use it. The gotcha here is that you need to put this hostPath and the files in all your cluster nodes where your pod may start.
answered Nov 12 '18 at 23:57
RicoRico
26.5k94864
answered Nov 12 '18 at 23:57
RicoRico
26.5k94864
answered Nov 12 '18 at 23:57
RicoRico
26.5k94864
answered Nov 12 '18 at 23:57
RicoRico
26.5k94864
26.5k94864
add a comment |
add a comment |
No. The volume mounts are all about pushing data into pods or persisting data that originates in a pod, and aren't usually a bidirectional data transfer mechanism.
If you want to see what's in a ConfigMap, you can always kubectl get configmap NAME -o yaml to dump it out.
(With some exceptions around things like the Docker socket, hostPath volumes aren't that common in non-Minikube Kubernetes installations, especially once you get into multi-host setups, and I'd investigate other paths to do whatever you're using it for now.)
answered Nov 12 '18 at 23:46
David MazeDavid Maze
11k2923
add a comment |
No. The volume mounts are all about pushing data into pods or persisting data that originates in a pod, and aren't usually a bidirectional data transfer mechanism.
If you want to see what's in a ConfigMap, you can always kubectl get configmap NAME -o yaml to dump it out.
(With some exceptions around things like the Docker socket, hostPath volumes aren't that common in non-Minikube Kubernetes installations, especially once you get into multi-host setups, and I'd investigate other paths to do whatever you're using it for now.)
answered Nov 12 '18 at 23:46
David MazeDavid Maze
11k2923
add a comment |
No. The volume mounts are all about pushing data into pods or persisting data that originates in a pod, and aren't usually a bidirectional data transfer mechanism.
If you want to see what's in a ConfigMap, you can always kubectl get configmap NAME -o yaml to dump it out.
(With some exceptions around things like the Docker socket, hostPath volumes aren't that common in non-Minikube Kubernetes installations, especially once you get into multi-host setups, and I'd investigate other paths to do whatever you're using it for now.)
answered Nov 12 '18 at 23:46
David MazeDavid Maze
11k2923
No. The volume mounts are all about pushing data into pods or persisting data that originates in a pod, and aren't usually a bidirectional data transfer mechanism.
If you want to see what's in a ConfigMap, you can always kubectl get configmap NAME -o yaml to dump it out.
(With some exceptions around things like the Docker socket, hostPath volumes aren't that common in non-Minikube Kubernetes installations, especially once you get into multi-host setups, and I'd investigate other paths to do whatever you're using it for now.)
answered Nov 12 '18 at 23:46
David MazeDavid Maze
11k2923
answered Nov 12 '18 at 23:46
David MazeDavid Maze
11k2923
answered Nov 12 '18 at 23:46
David MazeDavid Maze
11k2923
answered Nov 12 '18 at 23:46
David MazeDavid Maze
11k2923
11k2923
add a comment |
add a comment |
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Some of your past answers have not been well-received, and you're in danger of being blocked from answering.
Please pay close attention to the following guidance:
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53271247%2fmount-configmap-file-onto-hostpath-volume%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
