2 p.m.
Hi Everybody,
I'm switching from Docker to Podman on my VPS and I'm trying to convert all
docker-compose to Pod Yaml.
I know that Podman is supposed to use for `podman play kube` only Yaml generated by
`podman generate kube` and not user generated Yaml. But it works just fine like for
example demonstrated here: https://www.redhat.com/sysadmin/compose-podman-pods
I found project `Kompose` and I know that Podman 3.0 is supposed to support actual
docker-compose but it's very clear to me that Pod Yaml is the right way to go.
The only thing I can't reproduce in Pod Yaml is `build: .` like this:
--------------------------
version: '3'
services:
web:
build: .
...
db:
image: mariadb
...
--------------------------
In other words this will not work:
--------------------------
apiVersion: v1
kind: Pod
metadata:
labels:
app: my-pod
name: my-pod
status: {}
spec:
restartPolicy: Always
containers:
- name: web
build: .
...
- name: db
image: mariadb
...
--------------------------
So the only way is to create `Containerfile`, `podman build .` and then define Yaml like
this:
--------------------------
apiVersion: v1
kind: Pod
metadata:
labels:
app: my-pod
name: my-pod
status: {}
spec:
restartPolicy: Always
containers:
- name: web
image: sha256:307e5ce57d57472b6392f5027e0aa69c1090cd312e3429afdbd950d0d1fbae15
...
- name: db
image: mariadb
...
--------------------------
Could you please tell me is there a way how to build image from Pod Yaml like you can do
with docker-compose?
Thank you.
Kind regards,
Bobes T.
12:05 p.m.
Bobes,
This is an extremely interesting use case, and not one I was familiar
with. Could you share an example docker-compose file that you would like to
convert to Kube YAML? I know you've made a recommendation on the Kube YAML
you'd like to see, but that feels like specifying an interface without
completely verifying the use case.
If we could see the source/origin docker-compose YAML, that would really
help the engineering team validate the design of the interface in the Kube
YAML. AFAIK, there is not native Build directive in Kube, so we would need
something like BuildConfig in OpenShift.
There's also a new upstream project that Red Hat is sponsoring which be
Kubernetes neutral (aka not OpenShift only). That might be something we
could target as well, but I'll need to go chase down the project upstream.
A quick google search did not turn anything up.
Best Regards
Scott M
On Fri, Jan 29, 2021 at 3:01 PM <bobtruhla(a)seznam.cz> wrote:
Hi Everybody,
I'm switching from Docker to Podman on my VPS and I'm trying to convert
all docker-compose to Pod Yaml.
I know that Podman is supposed to use for `podman play kube` only Yaml
generated by `podman generate kube` and not user generated Yaml. But it
works just fine like for example demonstrated here:
https://www.redhat.com/sysadmin/compose-podman-pods
I found project `Kompose` and I know that Podman 3.0 is supposed to
support actual docker-compose but it's very clear to me that Pod Yaml is
the right way to go.
The only thing I can't reproduce in Pod Yaml is `build: .` like this:
--------------------------
version: '3'
services:
web:
build: .
...
db:
image: mariadb
...
--------------------------
In other words this will not work:
--------------------------
apiVersion: v1
kind: Pod
metadata:
labels:
app: my-pod
name: my-pod
status: {}
spec:
restartPolicy: Always
containers:
- name: web
build: .
...
- name: db
image: mariadb
...
--------------------------
So the only way is to create `Containerfile`, `podman build .` and then
define Yaml like this:
--------------------------
apiVersion: v1
kind: Pod
metadata:
labels:
app: my-pod
name: my-pod
status: {}
spec:
restartPolicy: Always
containers:
- name: web
image:
sha256:307e5ce57d57472b6392f5027e0aa69c1090cd312e3429afdbd950d0d1fbae15
...
- name: db
image: mariadb
...
--------------------------
Could you please tell me is there a way how to build image from Pod Yaml
like you can do with docker-compose?
Thank you.
Kind regards,
Bobes T.
_______________________________________________
Podman mailing list -- podman(a)lists.podman.io
To unsubscribe send an email to podman-leave(a)lists.podman.io
--
--
The Delicate Art of Product Management with Open Source:
http://crunchtools.com/open-source-in-business-2020/
--
Scott McCarty
Product Management - Containers, Red Hat Enterprise Linux & OpenShift
Email: smccarty(a)redhat.com
Phone: 312-660-3535
Cell: 330-807-1043
Web: http://crunchtools.com
12:09 p.m.
Bobes,
I found the upstream build project. It's called Shipwright:
https://github.com/shipwright-io/build
This might be a good interface to support builds on Podman. Not sure yet.
Best Regards
Scott M
On Mon, Feb 1, 2021 at 1:05 PM Scott McCarty <smccarty(a)redhat.com> wrote:
Bobes,
This is an extremely interesting use case, and not one I was familiar
with. Could you share an example docker-compose file that you would like to
convert to Kube YAML? I know you've made a recommendation on the Kube YAML
you'd like to see, but that feels like specifying an interface without
completely verifying the use case.
If we could see the source/origin docker-compose YAML, that would really
help the engineering team validate the design of the interface in the Kube
YAML. AFAIK, there is not native Build directive in Kube, so we would need
something like BuildConfig in OpenShift.
There's also a new upstream project that Red Hat is sponsoring which be
Kubernetes neutral (aka not OpenShift only). That might be something we
could target as well, but I'll need to go chase down the project upstream.
A quick google search did not turn anything up.
Best Regards
Scott M
On Fri, Jan 29, 2021 at 3:01 PM <bobtruhla(a)seznam.cz> wrote:
> Hi Everybody,
>
> I'm switching from Docker to Podman on my VPS and I'm trying to convert
> all docker-compose to Pod Yaml.
>
> I know that Podman is supposed to use for `podman play kube` only Yaml
> generated by `podman generate kube` and not user generated Yaml. But it
> works just fine like for example demonstrated here:
> https://www.redhat.com/sysadmin/compose-podman-pods
>
> I found project `Kompose` and I know that Podman 3.0 is supposed to
> support actual docker-compose but it's very clear to me that Pod Yaml is
> the right way to go.
>
> The only thing I can't reproduce in Pod Yaml is `build: .` like this:
>
> --------------------------
> version: '3'
> services:
> web:
> build: .
> ...
> db:
> image: mariadb
> ...
> --------------------------
>
> In other words this will not work:
>
> --------------------------
> apiVersion: v1
> kind: Pod
> metadata:
> labels:
> app: my-pod
> name: my-pod
> status: {}
> spec:
> restartPolicy: Always
> containers:
> - name: web
> build: .
> ...
> - name: db
> image: mariadb
> ...
> --------------------------
>
> So the only way is to create `Containerfile`, `podman build .` and then
> define Yaml like this:
>
> --------------------------
> apiVersion: v1
> kind: Pod
> metadata:
> labels:
> app: my-pod
> name: my-pod
> status: {}
> spec:
> restartPolicy: Always
> containers:
> - name: web
> image:
> sha256:307e5ce57d57472b6392f5027e0aa69c1090cd312e3429afdbd950d0d1fbae15
> ...
> - name: db
> image: mariadb
> ...
> --------------------------
>
> Could you please tell me is there a way how to build image from Pod Yaml
> like you can do with docker-compose?
>
> Thank you.
>
> Kind regards,
>
> Bobes T.
> _______________________________________________
> Podman mailing list -- podman(a)lists.podman.io
> To unsubscribe send an email to podman-leave(a)lists.podman.io
>
--
--
The Delicate Art of Product Management with Open Source:
http://crunchtools.com/open-source-in-business-2020/
--
Scott McCarty
Product Management - Containers, Red Hat Enterprise Linux & OpenShift
Email: smccarty(a)redhat.com
Phone: 312-660-3535
Cell: 330-807-1043
Web: http://crunchtools.com
--
--
The Delicate Art of Product Management with Open Source:
http://crunchtools.com/open-source-in-business-2020/
--
Scott McCarty
Product Management - Containers, Red Hat Enterprise Linux & OpenShift
Email: smccarty(a)redhat.com
Phone: 312-660-3535
Cell: 330-807-1043
Web: http://crunchtools.com
12:39 p.m.
I got this one ... look for something in the coming weeks
On Mon, 2021-02-01 at 13:09 -0500, Scott McCarty wrote:
Bobes,
I found the upstream build project. It's called
Shipwright: https://github.com/shipwright-io/build
This might be a good interface to support builds on Podman. Not sure
yet.
Best Regards
Scott M
On Mon, Feb 1, 2021 at 1:05 PM Scott McCarty <smccarty(a)redhat.com>
wrote:
> Bobes,
> This is an extremely interesting use case, and not one I was
> familiar with. Could you share an example docker-compose file that
> you would like to convert to Kube YAML? I know you've made a
> recommendation on the Kube YAML you'd like to see, but that feels
> like specifying an interface without completely verifying the use
> case.
>
> If we could see the source/origin docker-compose YAML, that would
> really help the engineering team validate the design of the
> interface in the Kube YAML. AFAIK, there is not native Build
> directive in Kube, so we would need something like BuildConfig in
> OpenShift.
>
> There's also a new upstream project that Red Hat is sponsoring
> which be Kubernetes neutral (aka not OpenShift only). That might be
> something we could target as well, but I'll need to go chase down
> the project upstream. A quick google search did not turn anything
> up.
>
> Best Regards
> Scott M
>
> On Fri, Jan 29, 2021 at 3:01 PM <bobtruhla(a)seznam.cz> wrote:
> > Hi Everybody,
> >
> > I'm switching from Docker to Podman on my VPS and I'm trying to
> > convert all docker-compose to Pod Yaml.
> >
> > I know that Podman is supposed to use for `podman play kube` only
> > Yaml generated by `podman generate kube` and not user generated
> > Yaml. But it works just fine like for example demonstrated here:
> > https://www.redhat.com/sysadmin/compose-podman-pods
> >
> > I found project `Kompose` and I know that Podman 3.0 is supposed
> > to support actual docker-compose but it's very clear to me that
> > Pod Yaml is the right way to go.
> >
> > The only thing I can't reproduce in Pod Yaml is `build: .` like
> > this:
> >
> > --------------------------
> > version: '3'
> > services:
> > web:
> > build: .
> > ...
> > db:
> > image: mariadb
> > ...
> > --------------------------
> >
> > In other words this will not work:
> >
> > --------------------------
> > apiVersion: v1
> > kind: Pod
> > metadata:
> > labels:
> > app: my-pod
> > name: my-pod
> > status: {}
> > spec:
> > restartPolicy: Always
> > containers:
> > - name: web
> > build: .
> > ...
> > - name: db
> > image: mariadb
> > ...
> > --------------------------
> >
> > So the only way is to create `Containerfile`, `podman build .`
> > and then define Yaml like this:
> >
> > --------------------------
> > apiVersion: v1
> > kind: Pod
> > metadata:
> > labels:
> > app: my-pod
> > name: my-pod
> > status: {}
> > spec:
> > restartPolicy: Always
> > containers:
> > - name: web
> > image:
> > sha256:307e5ce57d57472b6392f5027e0aa69c1090cd312e3429afdbd950d0d1
> > fbae15
> > ...
> > - name: db
> > image: mariadb
> > ...
> > --------------------------
> >
> > Could you please tell me is there a way how to build image from
> > Pod Yaml like you can do with docker-compose?
> >
> > Thank you.
> >
> > Kind regards,
> >
> > Bobes T.
> > _______________________________________________
> > Podman mailing list -- podman(a)lists.podman.io
> > To unsubscribe send an email to podman-leave(a)lists.podman.io
>
>
> --
> --
> The Delicate Art of Product Management with Open Source:
> http://crunchtools.com/open-source-in-business-2020/
> --
> Scott McCarty
> Product Management - Containers, Red Hat Enterprise Linux &
> OpenShift
> Email: smccarty(a)redhat.com
> Phone: 312-660-3535
> Cell: 330-807-1043
> Web: http://crunchtools.com
_______________________________________________
Podman mailing list -- podman(a)lists.podman.io
To unsubscribe send an email to podman-leave(a)lists.podman.io
1:51 p.m.
On 2/1/21 13:39, Brent Baude wrote:
I got this one ... look for something in the coming weeks
Might be something we should talk to the
https://github.com/shipwright-io/build team about.
On Mon, 2021-02-01 at 13:09 -0500, Scott McCarty wrote:
> Bobes,
> I found the upstream build project. It's called
> Shipwright: https://github.com/shipwright-io/build
>
> This might be a good interface to support builds on Podman. Not sure
> yet.
>
> Best Regards
> Scott M
>
> On Mon, Feb 1, 2021 at 1:05 PM Scott McCarty <smccarty(a)redhat.com>
> wrote:
>> Bobes,
>> This is an extremely interesting use case, and not one I was
>> familiar with. Could you share an example docker-compose file that
>> you would like to convert to Kube YAML? I know you've made a
>> recommendation on the Kube YAML you'd like to see, but that feels
>> like specifying an interface without completely verifying the use
>> case.
>>
>> If we could see the source/origin docker-compose YAML, that would
>> really help the engineering team validate the design of the
>> interface in the Kube YAML. AFAIK, there is not native Build
>> directive in Kube, so we would need something like BuildConfig in
>> OpenShift.
>>
>> There's also a new upstream project that Red Hat is sponsoring
>> which be Kubernetes neutral (aka not OpenShift only). That might be
>> something we could target as well, but I'll need to go chase down
>> the project upstream. A quick google search did not turn anything
>> up.
>>
>> Best Regards
>> Scott M
>>
>> On Fri, Jan 29, 2021 at 3:01 PM <bobtruhla(a)seznam.cz> wrote:
>>> Hi Everybody,
>>>
>>> I'm switching from Docker to Podman on my VPS and I'm trying to
>>> convert all docker-compose to Pod Yaml.
>>>
>>> I know that Podman is supposed to use for `podman play kube` only
>>> Yaml generated by `podman generate kube` and not user generated
>>> Yaml. But it works just fine like for example demonstrated here:
>>> https://www.redhat.com/sysadmin/compose-podman-pods
>>>
>>> I found project `Kompose` and I know that Podman 3.0 is supposed
>>> to support actual docker-compose but it's very clear to me that
>>> Pod Yaml is the right way to go.
>>>
>>> The only thing I can't reproduce in Pod Yaml is `build: .` like
>>> this:
>>>
>>> --------------------------
>>> version: '3'
>>> services:
>>> web:
>>> build: .
>>> ...
>>> db:
>>> image: mariadb
>>> ...
>>> --------------------------
>>>
>>> In other words this will not work:
>>>
>>> --------------------------
>>> apiVersion: v1
>>> kind: Pod
>>> metadata:
>>> labels:
>>> app: my-pod
>>> name: my-pod
>>> status: {}
>>> spec:
>>> restartPolicy: Always
>>> containers:
>>> - name: web
>>> build: .
>>> ...
>>> - name: db
>>> image: mariadb
>>> ...
>>> --------------------------
>>>
>>> So the only way is to create `Containerfile`, `podman build .`
>>> and then define Yaml like this:
>>>
>>> --------------------------
>>> apiVersion: v1
>>> kind: Pod
>>> metadata:
>>> labels:
>>> app: my-pod
>>> name: my-pod
>>> status: {}
>>> spec:
>>> restartPolicy: Always
>>> containers:
>>> - name: web
>>> image:
>>> sha256:307e5ce57d57472b6392f5027e0aa69c1090cd312e3429afdbd950d0d1
>>> fbae15
>>> ...
>>> - name: db
>>> image: mariadb
>>> ...
>>> --------------------------
>>>
>>> Could you please tell me is there a way how to build image from
>>> Pod Yaml like you can do with docker-compose?
>>>
>>> Thank you.
>>>
>>> Kind regards,
>>>
>>> Bobes T.
>>> _______________________________________________
>>> Podman mailing list -- podman(a)lists.podman.io
>>> To unsubscribe send an email to podman-leave(a)lists.podman.io
>>
>> --
>> --
>> The Delicate Art of Product Management with Open Source:
>> http://crunchtools.com/open-source-in-business-2020/
>> --
>> Scott McCarty
>> Product Management - Containers, Red Hat Enterprise Linux &
>> OpenShift
>> Email: smccarty(a)redhat.com
>> Phone: 312-660-3535
>> Cell: 330-807-1043
>> Web: http://crunchtools.com
>
> _______________________________________________
> Podman mailing list -- podman(a)lists.podman.io
> To unsubscribe send an email to podman-leave(a)lists.podman.io
_______________________________________________
Podman mailing list -- podman(a)lists.podman.io
To unsubscribe send an email to podman-leave(a)lists.podman.io
2:57 a.m.
Hi Scott,
I'm looking for the same functionality. If that's OK I'd like to answer your
question.
If we could see the source/origin docker-compose YAML,
The Yaml might get messed up so you can also get it from here:
https://gist.github.com/rudolfvesely/4ad6f762eafbe5417f80ff469b690c38
I intentionally made it complicated to show various options from
"docker-compose".
- "build: ." will use Dockerfile (in case of Podman this should be
Containerfile) to build image. In other words this will run "docker build ."
- "args" will define / overwrite values in "ARG" in
Dockerfile/Containerfile
- "dockerfile: ./foo/bar/containerfile_for_db" is used when Dockerfile has
different name. In other words this will run "docker build
--file=foo/bar/containerfile_for_db"
$ cat ./something/api.env
NODE_ENV=test
$ cat .env
TAG=v1.5
$ cat docker-compose.yml
version: "3.9"
services:
webserver:
# "Dockerfile" is located in the working directory and will be used to
build image
build: .
# build arguments (used in Dockerfile)
args:
APP_HOME: app
# environment variables
environment:
FLASK_ENV: development
dbserver:
# "Dockerfile" has different name
dockerfile: ./foo/bar/containerfile_for_db
# environment variables in a file
env_file:
- ./something/api.env
redis:
# variable defined in ".env"
image: "webapp:${TAG}"
volumes:
- logvolume01:/var/log
ports:
- "5000:5000"
Please let me know if you have other questions.
Kind regards,
Rudolf Vesely
8:28 a.m.
I think supporting the “build:” directive on docker-compose yaml since podman can do both
build and run containers
Very common use case for a large audience using docker-compose transitioning and migrating
to podman to have the functionality of “docker-compose build” followed by the normal
“docker-compose up”
Here is an example of using “build:” in one my labs for distributing tracing using nodejs
and java https://cloudnative101.dev/electives/dist-trace/activities/lab1
I think is ok if it’s not supported from kube yaml pod just from a compose, since a
podspec should not have any build directives
- Carlos Santana
@csantanapr
On Feb 5, 2021, at 3:57 AM, Rudolf Vesely via Podman
<podman(a)lists.podman.io> wrote:
Hi Scott,
I'm looking for the same functionality. If that's OK I'd like to answer your
question.
> If we could see the source/origin docker-compose YAML,
The Yaml might get messed up so you can also get it from here:
https://gist.github.com/rudolfvesely/4ad6f762eafbe5417f80ff469b690c38
I intentionally made it complicated to show various options from
"docker-compose".
- "build: ." will use Dockerfile (in case of Podman this should be
Containerfile) to build image. In other words this will run "docker build ."
- "args" will define / overwrite values in "ARG" in
Dockerfile/Containerfile
- "dockerfile: ./foo/bar/containerfile_for_db" is used when Dockerfile has
different name. In other words this will run "docker build
--file=foo/bar/containerfile_for_db"
$ cat ./something/api.env
> NODE_ENV=test
$ cat .env
> TAG=v1.5
$ cat docker-compose.yml
> version: "3.9"
> services:
> webserver:
> # "Dockerfile" is located in the working directory and will be used to
build image
> build: .
> # build arguments (used in Dockerfile)
> args:
> APP_HOME: app
> # environment variables
> environment:
> FLASK_ENV: development
> dbserver:
> # "Dockerfile" has different name
> dockerfile: ./foo/bar/containerfile_for_db
> # environment variables in a file
> env_file:
> - ./something/api.env
> redis:
> # variable defined in ".env"
> image: "webapp:${TAG}"
> volumes:
> - logvolume01:/var/log
> ports:
> - "5000:5000"
Please let me know if you have other questions.
Kind regards,
Rudolf Vesely
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1168
days inactive
1175
days old
6 comments
6 participants
participants (6)
-
bobtruhla＠seznam.cz -
Brent Baude -
Carlos Santana -
Daniel Walsh -
Rudolf Vesely -
Scott McCarty