'ASP dotnet core web app container running but not opening in browser. using .net 6.0
ASP dotnet core web app container running but not opening in browser. using .net 6.0
i tried http://localhot container port. please let me know where i am doing mistake.
Below i am sharing my Dockerfile and docker inpect result.
#workdir consider in app folder
FROM mcr.microsoft.com/dotnet/sdk:6.0 AS build-env
WORKDIR /app
#restoring nuget package for csproj files
COPY *.csproj ./
RUN dotnet restore
#copy all project files
COPY . ./
RUN dotnet publish -c Release -o out
#creating running image
FROM mcr.microsoft.com/dotnet/sdk:6.0
WORKDIR /app
COPY --from=build-env /app/out/ .
EXPOSE 80
ENTRYPOINT ["dotnet","dotnetpracticeapp2.dll"]
Docker container inspect output 11:11 my dotnet core web .net 6.0 version Container is running but not opening in browser,here is my some details
#workdir consider in app folder
FROM mcr.microsoft.com/dotnet/sdk:6.0 AS build-env
WORKDIR /app
#restoring nuget package for csproj files
COPY *.csproj ./
RUN dotnet restore
#copy all project files
COPY . ./
RUN dotnet publish -c Release -o out
#creating running image
FROM mcr.microsoft.com/dotnet/sdk:6.0
WORKDIR /app
COPY --from=build-env /app/out/ .
EXPOSE 80
ENTRYPOINT ["dotnet","dotnetpracticeapp2.dll"]
Docker container inspect output
{
"Id": "9fc1f41590c7e25ddd5ec66c542afac89c00ee9cef9c5148368f39c8a04248ce",
"Created": "2022-03-11T17:24:11.7749279Z",
"Path": "dotnet",
"Args": [
"dotnetpracticeapp2.dll"
],
"State": {
"Status": "running",
"Running": true,
"Paused": false,
"Restarting": false,
"OOMKilled": false,
"Dead": false,
"Pid": 1304,
"ExitCode": 0,
"Error": "",
"StartedAt": "2022-03-12T18:00:28.6816882Z",
"FinishedAt": "2022-03-12T17:55:41.1098514Z"
},
"Image": "sha256:7d342807b790f1c7a2470db3ae47a85849bd8354939c3e4659a24d1ee388799f",
"ResolvConfPath": "/var/lib/docker/containers/9fc1f41590c7e25ddd5ec66c542afac89c00ee9cef9c5148368f39c8a04248ce/resolv.conf",
"HostnamePath": "/var/lib/docker/containers/9fc1f41590c7e25ddd5ec66c542afac89c00ee9cef9c5148368f39c8a04248ce/hostname",
"HostsPath": "/var/lib/docker/containers/9fc1f41590c7e25ddd5ec66c542afac89c00ee9cef9c5148368f39c8a04248ce/hosts",
"LogPath": "/var/lib/docker/containers/9fc1f41590c7e25ddd5ec66c542afac89c00ee9cef9c5148368f39c8a04248ce/9fc1f41590c7e25ddd5ec66c542afac89c00ee9cef9c5148368f39c8a04248ce-json.log",
"Name": "/dotnetapp2",
"RestartCount": 0,
"Driver": "overlay2",
"Platform": "linux",
"MountLabel": "",
"ProcessLabel": "",
"AppArmorProfile": "",
"ExecIDs": null,
"HostConfig": {
"Binds": null,
"ContainerIDFile": "",
"LogConfig": {
"Type": "json-file",
"Config": {}
},
"NetworkMode": "default",
"PortBindings": {
"80/tcp": [
{
"HostIp": "",
"HostPort": "80"
}
]
},
"RestartPolicy": {
"Name": "no",
"MaximumRetryCount": 0
},
"AutoRemove": false,
"VolumeDriver": "",
"VolumesFrom": null,
"CapAdd": null,
"CapDrop": null,
"CgroupnsMode": "host",
"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",
"ConsoleSize": [
16,
125
],
"Isolation": "",
"CpuShares": 0,
"Memory": 0,
"NanoCpus": 0,
"CgroupParent": "",
"BlkioWeight": 0,
"BlkioWeightDevice": [],
"BlkioDeviceReadBps": null,
"BlkioDeviceWriteBps": null,
"BlkioDeviceReadIOps": null,
"BlkioDeviceWriteIOps": null,
"CpuPeriod": 0,
"CpuQuota": 0,
"CpuRealtimePeriod": 0,
"CpuRealtimeRuntime": 0,
"CpusetCpus": "",
"CpusetMems": "",
"Devices": [],
"DeviceCgroupRules": null,
"DeviceRequests": null,
"KernelMemory": 0,
"KernelMemoryTCP": 0,
"MemoryReservation": 0,
"MemorySwap": 0,
"MemorySwappiness": null,
"OomKillDisable": false,
"PidsLimit": null,
"Ulimits": null,
"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"
],
"ReadonlyPaths": [
"/proc/bus",
"/proc/fs",
"/proc/irq",
"/proc/sys",
"/proc/sysrq-trigger"
]
},
"GraphDriver": {
"Data": {
"LowerDir": "/var/lib/docker/overlay2/5c6af7c62a17860faa1bccd6d57b064bc9639fbdc06dc200f12c63f0743fb0b7-init/diff:/var/lib/docker/overlay2/2fgcm3ps2hi5wuzj4nmid1gj4/diff:/var/lib/docker/overlay2/7g09cyks1ftmankkfn8rytjea/diff:/var/lib/docker/overlay2/43fbef426074496a5423ec4f2423857878095a252a5091db78cfe891af95ed3d/diff:/var/lib/docker/overlay2/dbf0cc5fcf1324ccac8470143b6b87a313e4df9a9aa344a9e600c968afcafa16/diff:/var/lib/docker/overlay2/41d81ab7ea010ecb9fac87a3b63d7183228ffc286bb2063690e5f7169f212d20/diff:/var/lib/docker/overlay2/3ee4f5439a2a5103f23ade1cde12fcf6ca386e1f2affbbd9337769ef1ef0ecd4/diff:/var/lib/docker/overlay2/15bdfbb6aecdf14bbe0b554c229ef08c4bd578c0ac2c6c002c419344d198df1a/diff:/var/lib/docker/overlay2/f8e7d9c155d0f25cd0076112aa911496febe9ca4e7a9ace2bf7a09b80f0c0bd5/diff:/var/lib/docker/overlay2/e1c521705e01879f23dadea31f56fb5ad6693acc5ddacec190216556cb8ba742/diff:/var/lib/docker/overlay2/095c04af29c37be9e84dbba0d0b7aadf6c0c91fbeca2a2fa1843815b0ebf9cd0/diff",
"MergedDir": "/var/lib/docker/overlay2/5c6af7c62a17860faa1bccd6d57b064bc9639fbdc06dc200f12c63f0743fb0b7/merged",
"UpperDir": "/var/lib/docker/overlay2/5c6af7c62a17860faa1bccd6d57b064bc9639fbdc06dc200f12c63f0743fb0b7/diff",
"WorkDir": "/var/lib/docker/overlay2/5c6af7c62a17860faa1bccd6d57b064bc9639fbdc06dc200f12c63f0743fb0b7/work"
},
"Name": "overlay2"
},
"Mounts": [],
"Config": {
"Hostname": "9fc1f41590c7",
"Domainname": "",
"User": "",
"AttachStdin": false,
"AttachStdout": false,
"AttachStderr": false,
"ExposedPorts": {
"80/tcp": {}
},
"Tty": true,
"OpenStdin": true,
"StdinOnce": false,
"Env": [
"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
"ASPNETCORE_URLS=",
"DOTNET_RUNNING_IN_CONTAINER=true",
"DOTNET_VERSION=6.0.3",
"ASPNET_VERSION=6.0.3",
"Logging__Console__FormatterName=",
"DOTNET_GENERATE_ASPNET_CERTIFICATE=false",
"DOTNET_NOLOGO=true",
"DOTNET_SDK_VERSION=6.0.201",
"DOTNET_USE_POLLING_FILE_WATCHER=true",
"NUGET_XMLDOC_MODE=skip",
"POWERSHELL_DISTRIBUTION_CHANNEL=PSDocker-DotnetSDK-Debian-11"
],
"Cmd": null,
"Image": "parshchakurkar/dotnetapp:1.21",
"Volumes": null,
"WorkingDir": "/app",
"Entrypoint": [
"dotnet",
"dotnetpracticeapp2.dll"
],
"OnBuild": null,
"Labels": {}
},
"NetworkSettings": {
"Bridge": "",
"SandboxID": "1788646d554f21bfed7a1c0be2c884f136bd7095aee00b10f36f1ce155225bc6",
"HairpinMode": false,
"LinkLocalIPv6Address": "",
"LinkLocalIPv6PrefixLen": 0,
"Ports": {
"80/tcp": [
{
"HostIp": "0.0.0.0",
"HostPort": "80"
},
{
"HostIp": "::",
"HostPort": "80"
}
]
},
"SandboxKey": "/var/run/docker/netns/1788646d554f",
"SecondaryIPAddresses": null,
"SecondaryIPv6Addresses": null,
"EndpointID": "53d78ef8e764106367138ca777d419035a03219570a0a523875cf7157a8cd299",
"Gateway": "172.17.0.1",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"IPAddress": "172.17.0.2",
"IPPrefixLen": 16,
"IPv6Gateway": "",
"MacAddress": "02:42:ac:11:00:02",
"Networks": {
"bridge": {
"IPAMConfig": null,
"Links": null,
"Aliases": null,
"NetworkID": "464a5c9c0dcba8adc13abe8ef9c2d4756a4b1525a92bfe643b4e2ef75b609d57",
"EndpointID": "53d78ef8e764106367138ca777d419035a03219570a0a523875cf7157a8cd299",
"Gateway": "172.17.0.1",
"IPAddress": "172.17.0.2",
"IPPrefixLen": 16,
"IPv6Gateway": "",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"MacAddress": "02:42:ac:11:00:02",
"DriverOpts": null
}
}
}
}
please check and update where i am doing mistake
Solution 1:[1]
I presume docker command "docker run --rm -it -p 80:80 image ID"
Map port 80 on the local machine to port 80 in the container.
Please in the Internet browser key http://localhost: you build port 80 (EXPOSE 80)
if is in dockerfile add ENV ASPNETCORE_URLS=http://+:80
Please in the Internet browser key http://0.0.0.0:80/
Sources
This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.
Source: Stack Overflow
| Solution | Source |
|---|---|
| Solution 1 |