Running dotnet api in docker on Raspberry PI OS 64

[geedsen]

I have a VS project, that is building a minimal api using docker-compose. On the dev system (windows) I can build the api and using docker-compose I can debug it. It works just fine.
In the dockerfile I specified arm64 for the build and also the compose file specifies arm64 as platform.
So far so good.
So I know the image works. I then upload the image to my private docker hub. I can see there it is arm64 based.
Then on the raspberry pi I pull this image from the hub and start the container specifying the port .
But the container immediately exits. And that is how far I can get, I have no idea how I can find out why it exited.
I do have the result of the inspect of the container, any help appreciated:

[
    {
        "Id": "5f27dbf7c4aee939928aca9cb4cd11489284fac017da9bff02e4ece1c56f2f66",
        "Created": "2024-08-02T13:42:35.692081019Z",
        "Path": "bash",
        "Args": [],
        "State": {
            "Status": "exited",
            "Running": false,
            "Paused": false,
            "Restarting": false,
            "OOMKilled": false,
            "Dead": false,
            "Pid": 0,
            "ExitCode": 0,
            "Error": "",
            "StartedAt": "2024-08-02T13:42:36.430129355Z",
            "FinishedAt": "2024-08-02T13:42:36.64306985Z"
        },
        "Image": "sha256:c1726dd2236149d599f69c57d275a2288cf3d4145b10f08b060734f056c980d3",
        "ResolvConfPath": "/var/lib/docker/containers/5f27dbf7c4aee939928aca9cb4cd11489284fac017da9bff02e4ece1c56f2f66/resolv.conf",
        "HostnamePath": "/var/lib/docker/containers/5f27dbf7c4aee939928aca9cb4cd11489284fac017da9bff02e4ece1c56f2f66/hostname",
        "HostsPath": "/var/lib/docker/containers/5f27dbf7c4aee939928aca9cb4cd11489284fac017da9bff02e4ece1c56f2f66/hosts",
        "LogPath": "/var/lib/docker/containers/5f27dbf7c4aee939928aca9cb4cd11489284fac017da9bff02e4ece1c56f2f66/5f27dbf7c4aee939928aca9cb4cd11489284fac017da9bff02e4ece1c56f2f66-json.log",
        "Name": "/bushbaristavoucher",
        "RestartCount": 0,
        "Driver": "overlay2",
        "Platform": "linux",
        "MountLabel": "",
        "ProcessLabel": "",
        "AppArmorProfile": "",
        "ExecIDs": null,
        "HostConfig": {
            "Binds": null,
            "ContainerIDFile": "",
            "LogConfig": {
                "Type": "json-file",
                "Config": {}
            },
            "NetworkMode": "bridge",
            "PortBindings": {
                "8080/tcp": [
                    {
                        "HostIp": "",
                        "HostPort": "8080"
                    }
                ]
            },
            "RestartPolicy": {
                "Name": "no",
                "MaximumRetryCount": 0
            },
            "AutoRemove": false,
            "VolumeDriver": "",
            "VolumesFrom": null,
            "ConsoleSize": [
                37,
                144
            ],
            "CapAdd": null,
            "CapDrop": null,
            "CgroupnsMode": "private",
            "Dns": [],
            "DnsOptions": [],
            "DnsSearch": [],
            "ExtraHosts": null,
            "GroupAdd": null,
            "IpcMode": "private",
            "Cgroup": "",
            "Links": null,
            "OomScoreAdj": 0,
            "PidMode": "",
            "Privileged": false,
            "PublishAllPorts": false,
            "ReadonlyRootfs": false,
            "SecurityOpt": null,
            "UTSMode": "",
            "UsernsMode": "",
            "ShmSize": 67108864,
            "Runtime": "runc",
            "Isolation": "",
            "CpuShares": 0,
            "Memory": 0,
            "NanoCpus": 0,
            "CgroupParent": "",
            "BlkioWeight": 0,
            "BlkioWeightDevice": [],
            "BlkioDeviceReadBps": [],
            "BlkioDeviceWriteBps": [],
            "BlkioDeviceReadIOps": [],
            "BlkioDeviceWriteIOps": [],
            "CpuPeriod": 0,
            "CpuQuota": 0,
            "CpuRealtimePeriod": 0,
            "CpuRealtimeRuntime": 0,
            "CpusetCpus": "",
            "CpusetMems": "",
            "Devices": [],
            "DeviceCgroupRules": null,
            "DeviceRequests": null,
            "MemoryReservation": 0,
            "MemorySwap": 0,
            "MemorySwappiness": null,
            "OomKillDisable": null,
            "PidsLimit": null,
            "Ulimits": [],
            "CpuCount": 0,
            "CpuPercent": 0,
            "IOMaximumIOps": 0,
            "IOMaximumBandwidth": 0,
            "MaskedPaths": [
                "/proc/asound",
                "/proc/acpi",
                "/proc/kcore",
                "/proc/keys",
                "/proc/latency_stats",
                "/proc/timer_list",
                "/proc/timer_stats",
                "/proc/sched_debug",
                "/proc/scsi",
                "/sys/firmware",
                "/sys/devices/virtual/powercap"
            ],
            "ReadonlyPaths": [
                "/proc/bus",
                "/proc/fs",
                "/proc/irq",
                "/proc/sys",
                "/proc/sysrq-trigger"
            ]
        },
        "GraphDriver": {
            "Data": {
                "LowerDir": "/var/lib/docker/overlay2/fa3f40b30ac2409af58c0f4aae70719558eac747b975ad4245ff52fef5c73e6a-init/diff:/var/lib/docker/overlay2/9f0f93e886b1e7e2bcfa29e8ddcb28670868f7667fff2e621bce413172b05c06/diff:/var/lib/docker/overlay2/52ece62355ba4fd72d21768f01a8ee7df776f3bd9323076dcbb67500333adf6a/diff:/var/lib/docker/overlay2/0cc7ae5d5376f120e6f8e4022b7627cb9d391ededb485ce5f7c204e9a132b5fb/diff:/var/lib/docker/overlay2/a404189cbce1f5abbbd7eb1b307c37289bc4b850cf7523cd19a029489c34050f/diff:/var/lib/docker/overlay2/815a55da1f3aa749db901f1fc8bbed6522e2380869fa2fccd3195c482f3dc5b5/diff:/var/lib/docker/overlay2/de125ef33bb1d1d4b11a95e59112545e8c0d15a9a2e4a11f557d6c9e3bd227ee/diff:/var/lib/docker/overlay2/5d6b68352326f52d8254ffb5e9f1e0e0921271429512ae73605f84cae9227ca5/diff",
                "MergedDir": "/var/lib/docker/overlay2/fa3f40b30ac2409af58c0f4aae70719558eac747b975ad4245ff52fef5c73e6a/merged",
                "UpperDir": "/var/lib/docker/overlay2/fa3f40b30ac2409af58c0f4aae70719558eac747b975ad4245ff52fef5c73e6a/diff",
                "WorkDir": "/var/lib/docker/overlay2/fa3f40b30ac2409af58c0f4aae70719558eac747b975ad4245ff52fef5c73e6a/work"
            },
            "Name": "overlay2"
        },
        "Mounts": [],
        "Config": {
            "Hostname": "5f27dbf7c4ae",
            "Domainname": "",
            "User": "app",
            "AttachStdin": false,
            "AttachStdout": false,
            "AttachStderr": false,
            "ExposedPorts": {
                "8080/tcp": {}
            },
            "Tty": false,
            "OpenStdin": false,
            "StdinOnce": false,
            "Env": [
                "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
                "APP_UID=1654",
                "ASPNETCORE_HTTP_PORTS=8080",
                "DOTNET_RUNNING_IN_CONTAINER=true",
                "DOTNET_VERSION=8.0.7",
                "ASPNET_VERSION=8.0.7"
            ],
            "Cmd": [
                "bash"
            ],
            "Image": "bushbaristavoucher:latest",
            "Volumes": null,
            "WorkingDir": "/app",
            "Entrypoint": null,
            "OnBuild": null,
            "Labels": {
                "com.docker.compose.project": "dockercompose11230938145253305087",
                "com.docker.compose.service": "bushbaristavoucher",
                "com.docker.compose.version": "2.29.1",
                "com.microsoft.created-by": "visual-studio",
                "com.microsoft.visual-studio.project-name": "BushBaristaVoucher"
            }
        },
        "NetworkSettings": {
            "Bridge": "",
            "SandboxID": "",
            "SandboxKey": "",
            "Ports": {},
            "HairpinMode": false,
            "LinkLocalIPv6Address": "",
            "LinkLocalIPv6PrefixLen": 0,
            "SecondaryIPAddresses": null,
            "SecondaryIPv6Addresses": null,
            "EndpointID": "",
            "Gateway": "",
            "GlobalIPv6Address": "",
            "GlobalIPv6PrefixLen": 0,
            "IPAddress": "",
            "IPPrefixLen": 0,
            "IPv6Gateway": "",
            "MacAddress": "",
            "Networks": {
                "bridge": {
                    "IPAMConfig": null,
                    "Links": null,
                    "Aliases": null,
                    "MacAddress": "",
                    "DriverOpts": null,
                    "NetworkID": "0301cecca7ea00512dbb68f52fc9318cc98c1b043705afb857a0dd2eba56d713",
                    "EndpointID": "",
                    "Gateway": "",
                    "IPAddress": "",
                    "IPPrefixLen": 0,
                    "IPv6Gateway": "",
                    "GlobalIPv6Address": "",
                    "GlobalIPv6PrefixLen": 0,
                    "DNSNames": null
                }
            }
        }
    }
]

[geedsen]

@geedsen

“Entrypoint”: null,

Hmm, I would have expected to see the Entrypoint specified in the dockerfile here…but is is not.

[rimelek (Ákos Takács)]

I edited your post. Please, next time follow the formatting guide to make your shared coce, terminal output or anything with special characters readable.

How to format your forum posts

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[rimelek (Ákos Takács)]

@geedsen

Hmm, I would have expected to see the Entrypoint specified in the dockerfile here…

Why? But what you shared was not a Dockerfile.

EDITED

The container inspect output shows that the command is bash (entrypoint is not needed), but there is no interactive terminal asked for the container. Just because you use the same image, you still have to start the container correctly. If the image was built by vscode I guesss it was also started by it. But the interactive terminal flag (-it) is part of the container creation process not the image. If you want to use it in vscode on the new machine, I can’t help with that.

[geedsen]

Why? But what you shared was not a Dockerfile.

‘here’ is the text I shared from the inspect. In my Dockerfile I have an explicit entrypoint. I would have expected that in the text of the inspect instead of null. Or is it that it shows that there was no entrypoint specified on the run command?

In the mean time, I did get a little further in that I now managed to actually build an arm64 image, at least, docker desktop on my windows OS shows this special label ‘arm64’ on the image. If I inspect the container, I still dont see that…I find that confusing. It shows this:

and this

Now if docker desktop shows this,

then I would have expected to see this ‘arm64’ reflected in the results of the inspect.

But when I pull this to the PI I get the following message:

The image was build using visual studio, but I can run it without any problems on my windows system manually using docker run (when it is not explicitly build for the arm64 platform). But I want to run the arm64 image on my Raspberry. But that somehow inspects linux/arm64/v8. If I check the docker version on the PI, it says the architecture is linux/arm64 .

[rimelek (Ákos Takács)]

Please, don’t share texts as screenshots. Hard to read, cannot be quoted and doesn’t allow us to search for parts of it.

Also what you showed in the pictures doesn’t look like a containr inspection output I know of so what command did you exactly ran to get the output?

You need an emulator to run an image on arm64 that was made for amd64. The emulator is included in Docker desktop. On other systems you need to install it.