我正在学习 Docker。我创建了一个 .net core 2.2 webAPI 并能够使用 Postman 与之交互。然后我创建了一个 Dockerfile 并将其添加到 Docker 容器中。我无法再与 api 交互。我想我配置错误的东西。另外，我正在 Ubuntu 19.04 机器上开发。
我在 github 上查看了 .net 核心项目中的几个 Dockerfiles，并阅读了关于 SO 的几个问题，但无法弄清楚。
我的 docker 运行命令:
docker run -d -p 80:5001 blogapi:latest
我在 postman 中的获取请求:
https://0.0.0.0:80/api/blog
我的项目文件结构如下所示:
blog
|
--BlogApi
|
--BlogApi.csproj
--Dockerfile
--Program.cs
--Startup.cs
--...
Dockerfile:
FROM mcr.microsoft.com/dotnet/core/sdk:2.2 AS build
WORKDIR /app
# copy csproj and restore as distinct layers
COPY *.csproj ./
RUN dotnet restore
# copy everything else and build app
COPY . ./
WORKDIR /app/
RUN dotnet publish -c Release -o out
FROM mcr.microsoft.com/dotnet/core/aspnet:2.2 AS runtime
WORKDIR /app
COPY --from=build /app/out .
EXPOSE 80
ENTRYPOINT ["dotnet", "BlogApi.dll"]
在正在运行的容器上运行 docker inspect 的结果:
[
{
"Id": "88c7c5584c3e29423a2ce49deb9e50a52c131621d5cbb994751a645aba797c8f",
"Created": "2019-06-07T18:49:32.911199534Z",
"Path": "dotnet",
"Args": [
"BlogApi.dll"
],
"State": {
"Status": "running",
"Running": true,
"Paused": false,
"Restarting": false,
"OOMKilled": false,
"Dead": false,
"Pid": 26762,
"ExitCode": 0,
"Error": "",
"StartedAt": "2019-06-07T18:49:39.970680347Z",
"FinishedAt": "0001-01-01T00:00:00Z"
},
"Image": "sha256:b5e50590a06afae8eab09c5b748fdd97a22252a69fef3e8eb9a3916bbe1f8fd8",
"ResolvConfPath": "/var/lib/docker/containers/88c7c5584c3e29423a2ce49deb9e50a52c131621d5cbb994751a645aba797c8f/resolv.conf",
"HostnamePath": "/var/lib/docker/containers/88c7c5584c3e29423a2ce49deb9e50a52c131621d5cbb994751a645aba797c8f/hostname",
"HostsPath": "/var/lib/docker/containers/88c7c5584c3e29423a2ce49deb9e50a52c131621d5cbb994751a645aba797c8f/hosts",
"LogPath": "/var/lib/docker/containers/88c7c5584c3e29423a2ce49deb9e50a52c131621d5cbb994751a645aba797c8f/88c7c5584c3e29423a2ce49deb9e50a52c131621d5cbb994751a645aba797c8f-json.log",
"Name": "/peaceful_buck",
"RestartCount": 0,
"Driver": "overlay2",
"Platform": "linux",
"MountLabel": "",
"ProcessLabel": "",
"AppArmorProfile": "docker-default",
"ExecIDs": null,
"HostConfig": {
"Binds": null,
"ContainerIDFile": "",
"LogConfig": {
"Type": "json-file",
"Config": {}
},
"NetworkMode": "default",
"PortBindings": {
"5001/tcp": [
{
"HostIp": "",
"HostPort": "80"
}
]
},
"RestartPolicy": {
"Name": "no",
"MaximumRetryCount": 0
},
"AutoRemove": false,
"VolumeDriver": "",
"VolumesFrom": null,
"CapAdd": null,
"CapDrop": null,
"Dns": [],
"DnsOptions": [],
"DnsSearch": [],
"ExtraHosts": null,
"GroupAdd": null,
"IpcMode": "shareable",
"Cgroup": "",
"Links": null,
"OomScoreAdj": 0,
"PidMode": "",
"Privileged": false,
"PublishAllPorts": false,
"ReadonlyRootfs": false,
"SecurityOpt": null,
"UTSMode": "",
"UsernsMode": "",
"ShmSize": 67108864,
"Runtime": "runc",
"ConsoleSize": [
0,
0
],
"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,
"DiskQuota": 0,
"KernelMemory": 0,
"MemoryReservation": 0,
"MemorySwap": 0,
"MemorySwappiness": null,
"OomKillDisable": false,
"PidsLimit": 0,
"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/overlay2/9993c5bb1be9533897834e03038a2247ac52f0b2043414807e437d075e5448e6-init/diff:/var/lib/docker/overlay2/b53ea9ebd00b2c4cdc83d5df8905241dbd1b2413abbe38161336543e04ab7b32/diff:/var/lib/docker/overlay2/eeac3efbd1b7e13370ee7b640173a07e1b375969dcd75df142409d5c3653688f/diff:/var/lib/docker/overlay2/7d24ebd98305848e3a3f3494d327826b27fc5cc116995df2720aa3754b37579f/diff:/var/lib/docker/overlay2/dbe73936117865157ca2d89f86909bf2ce32443a48ca368dcbb3ef934fbee775/diff:/var/lib/docker/overlay2/13f3a01d82b32c692d8b533cebc22aedaf7691e8c4bc3a2a6d91bf028289a605/diff:/var/lib/docker/overlay2/b9554cb92ce0399f6964958300ac2af95cfec4eac08acc0ed01fa8fe26d1def1/diff",
"MergedDir": "/var/lib/docker/overlay2/9993c5bb1be9533897834e03038a2247ac52f0b2043414807e437d075e5448e6/merged",
"UpperDir": "/var/lib/docker/overlay2/9993c5bb1be9533897834e03038a2247ac52f0b2043414807e437d075e5448e6/diff",
"WorkDir": "/var/lib/docker/overlay2/9993c5bb1be9533897834e03038a2247ac52f0b2043414807e437d075e5448e6/work"
},
"Name": "overlay2"
},
"Mounts": [],
"Config": {
"Hostname": "88c7c5584c3e",
"Domainname": "",
"User": "",
"AttachStdin": false,
"AttachStdout": false,
"AttachStderr": false,
"ExposedPorts": {
"5001/tcp": {},
"80/tcp": {}
},
"Tty": false,
"OpenStdin": false,
"StdinOnce": false,
"Env": [
"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
"ASPNETCORE_URLS=http://+:80",
"DOTNET_RUNNING_IN_CONTAINER=true",
"ASPNETCORE_VERSION=2.2.5"
],
"Cmd": null,
"ArgsEscaped": true,
"Image": "blogapi:latest",
"Volumes": null,
"WorkingDir": "/app",
"Entrypoint": [
"dotnet",
"BlogApi.dll"
],
"OnBuild": null,
"Labels": {}
},
"NetworkSettings": {
"Bridge": "",
"SandboxID": "172dbe50c926349277a2ae67e09639d2e3296625dbec218e51a7526066e78b03",
"HairpinMode": false,
"LinkLocalIPv6Address": "",
"LinkLocalIPv6PrefixLen": 0,
"Ports": {
"5001/tcp": [
{
"HostIp": "0.0.0.0",
"HostPort": "80"
}
],
"80/tcp": null
},
"SandboxKey": "/var/run/docker/netns/172dbe50c926",
"SecondaryIPAddresses": null,
"SecondaryIPv6Addresses": null,
"EndpointID": "4e830cf57d2e4534df061a56cf09dd88c10771345cd5e0212612ea8073f0d537",
"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": "57c61c9decd1fbc78a15bc72207a406f767bc6516299a6e5ad33b439ae655520",
"EndpointID": "4e830cf57d2e4534df061a56cf09dd88c10771345cd5e0212612ea8073f0d537",
"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
}
}
}
}
]
postman 正在返回“无法得到任何回应”
最佳答案
您的应用未监听您正在映射的端口。 5000和 5001是 ASP.net Core 的常见开发默认设置，但您的项目目前仅在端口 80 上运行，没有 SSL。所以，你应该能够像这样运行它:
docker run -d -p 8080:80 blogapi:latest
并联系
http://localhost:8080/api/blog .
关于docker - dotnet core 2.2 webAPI 在 Docker 中容器化后没有响应，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/56500353/