JupyterHub installation in windows using docker - docker

I want to install JupiterHub using Docker (my operating system is Windows). I have done the installation steps and I am running JupiterHab, when I login to jupyterhub as an admin or user in browser, I get the following error:
Spawn failed: Server at http://127.0.0.1:44325/user/zahra/ didn't respond in 30 seconds
i edited the jupyterhub config file and added these lines:
import pwd, subprocess
c.JupyterHub.authenticator_class = 'nativeauthenticator.NativeAuthenticator'
c.Authenticator.admin_users = {'admin'}
def pre_spawn_hook(spawner):
username = spawner.user.name
try:
pwd.getpwnam(username)
except KeyError:
subprocess.check_call(['useradd', '-ms', '/bin/bash', username])
c.Spawner.pre_spawn_hook = pre_spawn_hook
c.Spawner.default_url = '/lab'
Help me please

Related

Stackstorm: Action "packs.install" cannot be found

I am currently having issues installing any pack at all in stackstorm using the st2 client.
Error:
ERROR: 400 Client Error: Bad Request
MESSAGE: Action "packs.install" cannot be found. for url: http://sts-st2api:9101/packs/install
Environment: Running Kubernetes on local kind cluster
To repoduce:
Exec into the st2 client pod
Then login to the st2 using: st2 login -w st2admin
Install any pack

jib gradle plugin + static docker client: cannot build image due to permission error: layer.tar: A required privilege is not held by the client

I want to build Docker image with jib Gradle plugin in Windows, and use a Windows docker client to load it into my WSL 2 container running dockerd, and use WSL 2 as server. Resource-wise I think this is the lightest solution. .
On WSL 2 side, I run dockerd service in Ubuntu 20 on WSL 2, and it's listening on [::]:2375. TLS disabled(--tls=false), only http.
On Windows side, I only downloaded the Docker client(static client, from https://download.docker.com/win/static/stable/x86_64/), and added the dynamic WSL 2 container IP into the insecure-registry in daemon.json. This file is put in the same dir of docker.exe client.
On Intellij IDEA side, I use gradle 5.2.1 wrapper, and jib plugin 3.2.1. I configure jib as follows:
jib {
dockerClient.executable = 'E:\\coding\\environment\\docker\\docker.exe'
dockerClient.environment = [ DOCKER_HOST: '172.21.169.180:2375',
DOCKER_INSECURE_REGISTRIES: "172.21.169.180:5000"]
from.image = 'docker://mini/java#sha256:d3ded1fd0df592c33185d930d976304994bbc539c7bf70a6091cb3da0f7e11fa'
to.image = 'spring-plugins-demo'
container.mainClass = 'dev.westerngun.oldway.ApplicationV1'
}
I know it can connect to dockerd in my WSL 2, because before I add the dynamic IP of Ubuntu the error was not able to connect to daemon. Now it can load the base image and start building.
Then, when I run jibDockerBuild --stacktrace, I see this error:
Execution failed for task ':jibDockerBuild'.
> com.google.cloud.tools.jib.plugins.common.BuildStepsExecutionException: C:\Users\WESTER~1\AppData\Local\Temp\16164656866093264693\33e3f3775358985441c3bea658f06f5307326c83f9c0bcbf8aa4acb327abffde\layer.tar: �ͻ���û���������Ȩ��
* Try:
Run with --info or --debug option to get more log output. Run with --scan to get full insights.
* Exception is:
org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':jibDockerBuild'.
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$2.accept(ExecuteActionsTaskExecuter.java:121)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$2.accept(ExecuteActionsTaskExecuter.java:117)
at org.gradle.internal.Try$Failure.ifSuccessfulOrElse(Try.java:184)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:110)
at org.gradle.api.internal.tasks.execution.ResolveIncrementalChangesTaskExecuter.execute(ResolveIncrementalChangesTaskExecuter.java:84)
at org.gradle.api.internal.tasks.execution.ResolveTaskOutputCachingStateExecuter.execute(ResolveTaskOutputCachingStateExecuter.java:91)
at org.gradle.api.internal.tasks.execution.ResolveBeforeExecutionStateTaskExecuter.execute(ResolveBeforeExecutionStateTaskExecuter.java:74)
at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:58)
at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:109)
at org.gradle.api.internal.tasks.execution.ResolveBeforeExecutionOutputsTaskExecuter.execute(ResolveBeforeExecutionOutputsTaskExecuter.java:67)
at org.gradle.api.internal.tasks.execution.ResolveAfterPreviousExecutionStateTaskExecuter.execute(ResolveAfterPreviousExecutionStateTaskExecuter.java:46)
at org.gradle.api.internal.tasks.execution.CleanupStaleOutputsExecuter.execute(CleanupStaleOutputsExecuter.java:93)
at org.gradle.api.internal.tasks.execution.FinalizePropertiesTaskExecuter.execute(FinalizePropertiesTaskExecuter.java:45)
at org.gradle.api.internal.tasks.execution.ResolveTaskExecutionModeExecuter.execute(ResolveTaskExecutionModeExecuter.java:94)
at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:57)
at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:56)
at org.gradle.api.internal.tasks.execution.CatchExceptionTaskExecuter.execute(CatchExceptionTaskExecuter.java:36)
at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.executeTask(EventFiringTaskExecuter.java:63)
at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.call(EventFiringTaskExecuter.java:49)
at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.call(EventFiringTaskExecuter.java:46)
at org.gradle.internal.operations.DefaultBuildOperationExecutor$CallableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:416)
at org.gradle.internal.operations.DefaultBuildOperationExecutor$CallableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:406)
at org.gradle.internal.operations.DefaultBuildOperationExecutor$1.execute(DefaultBuildOperationExecutor.java:165)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:250)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:158)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.call(DefaultBuildOperationExecutor.java:102)
at org.gradle.internal.operations.DelegatingBuildOperationExecutor.call(DelegatingBuildOperationExecutor.java:36)
at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter.execute(EventFiringTaskExecuter.java:46)
at org.gradle.execution.plan.LocalTaskNodeExecutor.execute(LocalTaskNodeExecutor.java:43)
at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$InvokeNodeExecutorsAction.execute(DefaultTaskExecutionGraph.java:355)
at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$InvokeNodeExecutorsAction.execute(DefaultTaskExecutionGraph.java:343)
at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$BuildOperationAwareExecutionAction.execute(DefaultTaskExecutionGraph.java:336)
at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$BuildOperationAwareExecutionAction.execute(DefaultTaskExecutionGraph.java:322)
at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker$1.execute(DefaultPlanExecutor.java:134)
at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker$1.execute(DefaultPlanExecutor.java:129)
at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.execute(DefaultPlanExecutor.java:202)
at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.executeNextNode(DefaultPlanExecutor.java:193)
at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.run(DefaultPlanExecutor.java:129)
at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63)
at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:46)
at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55)
Caused by: org.gradle.internal.UncheckedException: com.google.cloud.tools.jib.plugins.common.BuildStepsExecutionException: C:\Users\WESTER~1\AppData\Local\Temp\16164656866093264693\33e3f3775358985441c3bea658f06f5307326c83f9c0bcbf8aa4acb327abffde\layer.tar: �ͻ���û���������Ȩ��
at org.gradle.internal.UncheckedException.throwAsUncheckedException(UncheckedException.java:67)
at org.gradle.internal.UncheckedException.throwAsUncheckedException(UncheckedException.java:41)
at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:106)
at org.gradle.api.internal.project.taskfactory.StandardTaskAction.doExecute(StandardTaskAction.java:48)
at org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:41)
at org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:28)
at org.gradle.api.internal.AbstractTask$TaskActionWrapper.execute(AbstractTask.java:705)
at org.gradle.api.internal.AbstractTask$TaskActionWrapper.execute(AbstractTask.java:672)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$4.run(ExecuteActionsTaskExecuter.java:338)
at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:402)
at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:394)
at org.gradle.internal.operations.DefaultBuildOperationExecutor$1.execute(DefaultBuildOperationExecutor.java:165)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:250)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:158)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:92)
at org.gradle.internal.operations.DelegatingBuildOperationExecutor.run(DelegatingBuildOperationExecutor.java:31)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:327)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:312)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.access$200(ExecuteActionsTaskExecuter.java:75)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$TaskExecution.execute(ExecuteActionsTaskExecuter.java:158)
at org.gradle.internal.execution.impl.steps.ExecuteStep.execute(ExecuteStep.java:46)
at org.gradle.internal.execution.impl.steps.CancelExecutionStep.execute(CancelExecutionStep.java:34)
at org.gradle.internal.execution.impl.steps.TimeoutStep.executeWithoutTimeout(TimeoutStep.java:69)
at org.gradle.internal.execution.impl.steps.TimeoutStep.execute(TimeoutStep.java:49)
at org.gradle.internal.execution.impl.steps.CatchExceptionStep.execute(CatchExceptionStep.java:34)
at org.gradle.internal.execution.impl.steps.CreateOutputsStep.execute(CreateOutputsStep.java:49)
at org.gradle.internal.execution.impl.steps.SnapshotOutputStep.execute(SnapshotOutputStep.java:42)
at org.gradle.internal.execution.impl.steps.SnapshotOutputStep.execute(SnapshotOutputStep.java:28)
at org.gradle.internal.execution.impl.steps.CacheStep.executeWithoutCache(CacheStep.java:133)
at org.gradle.internal.execution.impl.steps.CacheStep.lambda$execute$5(CacheStep.java:83)
at org.gradle.internal.execution.impl.steps.CacheStep.execute(CacheStep.java:82)
at org.gradle.internal.execution.impl.steps.CacheStep.execute(CacheStep.java:37)
at org.gradle.internal.execution.impl.steps.PrepareCachingStep.execute(PrepareCachingStep.java:33)
at org.gradle.internal.execution.impl.steps.StoreSnapshotsStep.execute(StoreSnapshotsStep.java:38)
at org.gradle.internal.execution.impl.steps.StoreSnapshotsStep.execute(StoreSnapshotsStep.java:23)
at org.gradle.internal.execution.impl.steps.SkipUpToDateStep.executeBecause(SkipUpToDateStep.java:95)
at org.gradle.internal.execution.impl.steps.SkipUpToDateStep.lambda$execute$0(SkipUpToDateStep.java:88)
at org.gradle.internal.execution.impl.steps.SkipUpToDateStep.execute(SkipUpToDateStep.java:52)
at org.gradle.internal.execution.impl.steps.SkipUpToDateStep.execute(SkipUpToDateStep.java:36)
at org.gradle.internal.execution.impl.DefaultWorkExecutor.execute(DefaultWorkExecutor.java:34)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:109)
... 37 more
Caused by: com.google.cloud.tools.jib.plugins.common.BuildStepsExecutionException: C:\Users\WESTER~1\AppData\Local\Temp\16164656866093264693\33e3f3775358985441c3bea658f06f5307326c83f9c0bcbf8aa4acb327abffde\layer.tar: �ͻ���û���������Ȩ��
at com.google.cloud.tools.jib.plugins.common.JibBuildRunner.runBuild(JibBuildRunner.java:285)
at com.google.cloud.tools.jib.gradle.BuildDockerTask.buildDocker(BuildDockerTask.java:126)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:103)
... 75 more
Caused by: java.nio.file.FileSystemException: C:\Users\WESTER~1\AppData\Local\Temp\16164656866093264693\33e3f3775358985441c3bea658f06f5307326c83f9c0bcbf8aa4acb327abffde\layer.tar: �ͻ���û���������Ȩ��
at com.google.cloud.tools.jib.tar.TarExtractor.extract(TarExtractor.java:93)
at com.google.cloud.tools.jib.tar.TarExtractor.extract(TarExtractor.java:49)
at com.google.cloud.tools.jib.builder.steps.LocalBaseImageSteps.cacheDockerImageTar(LocalBaseImageSteps.java:217)
at com.google.cloud.tools.jib.builder.steps.LocalBaseImageSteps.lambda$retrieveDockerDaemonLayersStep$0(LocalBaseImageSteps.java:133)
at com.google.common.util.concurrent.TrustedListenableFutureTask$TrustedFutureInterruptibleTask.runInterruptibly(TrustedListenableFutureTask.java:131)
at com.google.common.util.concurrent.InterruptibleTask.run(InterruptibleTask.java:74)
at com.google.common.util.concurrent.TrustedListenableFutureTask.run(TrustedListenableFutureTask.java:82)
The error message in Chinese is
C:\Users\WESTER~1\AppData\Local\Temp\16164656866093264693\33e3f3775358985441c3bea658f06f5307326c83f9c0bcbf8aa4acb327abffde\layer.tar: 客户端没有所需的特权。
And I think it can be translated into "A required permission is not held by the client".
I suspect this is because my user is not added to docker-user group, as stated here. But, I uninstalled Docker toolbox and I don't see this group anymore, as it sets DOCKER_HOST and interferes with my setup. Secondly, I don't have Local Users and Group available, seems Windows 10 Home edition does not have it.
Should I try to install gpedit in my Home Edition, add the group and try? But without Docker toolbox, I doubt it would work. Docker documentation explains here that it creates the group and configure it to ensure separation of permissions between root/admin and non-root/non-admin users; I think only creating that group will not work. https://docs.docker.com/desktop/windows/permission-requirements/
But, when I use docker.exe to connect to WSL 2 and save a tar file to C:\Users\WESTER~1\AppData\Local\Temp, it works. The tar file is created and not corrupted. So I think it's not a permission error; anyone can access that dir.
Windows bundled bsd-tar.exe has nothing to do with it; renaming the tar.exe in System32 and build, the error is the same.
It is solved when I run cmd as admin and cd to project dir and do gradlew jibDockerBuild. Image built and loaded into WSL 2 daemon successfully. It is indeed file system permission error.
Although still very strange(as I allowed the permission to everyone on that folder), but at least this is one workaround.
Another workaround, even better:
As per https://github.com/microsoft/WSL/issues/4983, I changed the jib config to set docker host to be http://[::1]:2375, and suddenly it works. Seems only ipv6 is bind.
Now not only the host is reachable, even permission error disappears; no insecure_registries settings needed, neither.

How to skip TLS cert check for crictl (containerd CR) while pulling the images from private repository

I have installed k8s 1.24 version and containerd (containerd://1.5.9) is the CR for my setup (ubuntu 20.04).
I have also installed docker on my VM and have added my private repository under /etc/docker/daemon.json with the following changes:
{ "insecure-registries" : ["myPvtRepo.com:5028"] }
When I am running docker pull myPvtRepo:123/image after login to my pvt repo by using docker login myPvtRepo:123 command, I am able to pull the images while running the same command with crictl pull myPvtRepo:123/image, I am facing:
E0819 06:49:01.200489 162610 remote_image.go:218] "PullImage from
image service failed" err="rpc error: code = Unknown desc = failed to
pull and unpack image "myPvtRepo.com:5028/centos:latest": failed to
resolve reference "myPvtRepo.com:5028/centos:latest": failed to do
request: Head https://myPvtRepo.com::5028/v2/centos/manifests/latest:
x509: certificate signed by unknown authority"
image="myPvtRepo.com::5028/centos:latest" FATA[0000] pulling image:
rpc error: code = Unknown desc = failed to pull and unpack image
"myPvtRepo.com::5028/centos:latest": failed to resolve reference
"myPvtRepo.com:5028/centos:latest": failed to do request: Head
https://myPvtRepo.com::5028/v2/centos/manifests/latest: x509:
certificate signed by unknown authority
FYI, I have modified /etc/containerd/config.toml with below content.
version = 2
[plugin."io.containerd.grpc.v1.cri".registry.configs."myPvtRepo.com:5028".tls]
insecure_skip_verify = true
[plugins."io.containerd.grpc.v1.cri".registry.mirrors]
[plugins."io.containerd.grpc.v1.cri".registry.mirrors."docker.io"]
endpoint = ["https://myPvtRepo.com:5028", "https://myPvtRepo.com:5038", "https://myPvtRepo.com:5037",
"https://myPvtRepo.com:5039"]
[plugins."io.containerd.grpc.v1.cri".registry.mirrors."IP:5000"]
endpoint = ["http://IP:5000"]
[plugins."io.containerd.grpc.v1.cri".registry.mirrors."IP:5000"]
endpoint = ["http://IP:5000"]
I have also modified containerd's endpoint to point to containerd's sock.
Can you please help me out to understand and fix that even after setting insecure_skip_verify = true for my pvt repository and restarting the containerd service why I am getting this issue.
I got a solution:
cd /usr/local/share/ca-certificates/
curl -L --remote-name http://your-artifacts.com/xyz-bundle.crt
/usr/sbin/update-ca-certificates
This one work for me.
Also make sure to update your endpoints under /etc/crictl.yaml
runtime-endpoint: unix:///run/containerd/containerd.sock
image-endpoint: ""
timeout: 0
debug: false
pull-image-on-create: false
disable-pull-on-run: false
You will need to specify the hosts.toml file for the private registry and add skip-verify = true.
ref: https://github.com/containerd/containerd/blob/main/docs/hosts.md
Steps:
create folders: mkdir -p /etc/containerd/certs.d/<your registry>
add these config in /etc/containerd/config.toml:
[plugins."io.containerd.grpc.v1.cri".registry]
config_path = "/etc/containerd/certs.d"
create and edit hosts.toml under the just created folder
server = "https://<your registry>"
[host."https://<your registry>"]
capabilities = ["pull", "resolve"]
skip_verify = true

Amending permissions to bash files on Airflow Composer

We are running Airflow on Google Cloud Composer.
I have a bash script that is being called in a BashOperator of my DAG:
split_files = BashOperator(
task_id='split_gcp_files',
bash_command='/home/airflow/gcs/dags/file_splitter.sh ',
xcom_push=True,
depends_on_past=True,
dag=dag
)
When I run this however, I get the following error:
[2021-06-17 18:24:13,330] {bash_operator.py:137} INFO - Temporary script location: /tmp/airflowtmp8dsdf38/split_gcp_filesah83sdf
[2021-06-17 18:24:13,330] {bash_operator.py:147} INFO - Running command: /home/airflow/gcs/dags/file_splitter.sh
[2021-06-17 18:24:13,472] {bash_operator.py:154} INFO - Output:
[2021-06-17 18:24:13,475] {bash_operator.py:158} INFO - /tmp/airflowtmp8dsdf38/split_gcp_filesoofibpg7: line 1: /home/airflow/gcs/dags/file_splitter.sh: Permission denied
The file_splitter.sh has been copied to a GCS bucket, but I'm not sure where the file is located for Airflow to amend the permissions? E.g. where do I find '/home/airflow/gcs/dags/'?
I've tried SSH-ing into the Kubernetes nodes but couldn't find that path or perhaps I don't have permission?
Changing the bash command to this worked, any ideas why?:
bash_command='bash /home/airflow/gcs/dags/file_splitter.sh '

Erlang :ssh authentication error. How to connect to ssh using identity file

I'm getting an authentication error when trying to connect ssh host.
The goal is to connect to the host using local forwarding. The command below is an example using drop bear ssh client to connect to host with local forwarding.
dbclient -N -i /opt/private-key-rsa.dropbear -L 2002:1.2.3.4:2006 -p 2002 -l
test_user 11.22.33.44
I have this code so far which returns empty connection
ip = "11.22.33.44"
user = "test_user"
port = 2002
ssh_config = [
user_interaction: false,
silently_accept_hosts: true,
user: String.to_charlist(user),
user_dir: String.to_charlist("/opt/")
]
# returns aunthentication error
{:ok, conn} = :ssh.connect(String.to_charlist(ip), port, ssh_config)
This is the error Im seeing
Server: 'SSH-2.0-OpenSSH_5.2'
Disconnects with code = 14 [RFC4253 11.1]: Unable to connect using the available authentication methods
State = {userauth,client}
Module = ssh_connection_handler, Line = 893.
Details:
User auth failed for: "test_user"
I'm a newbie to elixir and have been reading this erlang ssh document for 2 days. I did not find any examples in the documentation which makes it difficult to understand.
You are using non-default key name, private-key-rsa.dropbear. Erlang by default looks for this set of names:
From ssh module docs:
Optional: one or more User's private key(s) in case of publickey authorization. The default files are
id_dsa and id_dsa.pub
id_rsa and id_rsa.pub
id_ecdsa and id_ecdsa.pub`
To verify this is a reason, try renaming private-key-rsa.dropbear to id_rsa. If this works, the next step would be to add a key_cb callback to the ssh_config which should return the correct key file name.
One example implementation of a similar feature is labzero/ssh_client_key_api.
The solution was to convert dropbear key to ssh key. I have used this link as reference.
Here is the command to convert dropbear key to ssh key
/usr/lib/dropbear/dropbearconvert dropbear openssh /opt/private-key-rsa.dropbear /opt/id_rsa

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