[英].net core app ca't connect to rabbitMQ (both running in a docker network via docker-compose)
[英].net core can not connect to postgres (docker compose)
我有一個 docker 撰寫文件,它應該構建:
數據庫(Postgres)
API(.net核心)
前端 (Vue)
docker-compose.yml
version: '3.8'
networks:
production:
driver: bridge
test:
driver: bridge
docker-compose.test.yml
version: '3.8'
services:
postgres_test:
image: postgres:11.4
container_name: postgres_test
environment:
POSTGRES_USER: coinManager
POSTGRES_PASSWORD: postgresTest
POSTGRES_DB: coinManagerTest
restart: always
volumes:
- /coinManager/postgres/test/data:/var/lib/postgresql/data
ports:
- '5433:5432'
networks:
- test
web_test:
build: ./papasmuenzenbackend/.
container_name: api_test
ports:
- '50599:80'
links:
- postgres_test
depends_on:
- 'postgres_test'
networks:
- test
client_test:
build: ./papasmuenzenfrontend/.
container_name: vue_test
ports:
- '8081:8080'
networks:
- test
從此腳本開始:
docker-compose -p papasmuenzen -f docker-compose.yml -f docker-compose.test.yml up -d --build
看起來數據庫啟動正常,因為我可以使用 pgAdmin 連接到它
docker-compose啟動.net核心項目時,嘗試遷移數據庫時啟動失敗
#region Database
using (var dbContext = serviceProvider.GetService<CoinContext>())
dbContext.Database.Migrate();
#endregion
連接字符串:
"CoinDatabaseConnection": "Server=postgres_test;Port=5433;Database=coinManagerTest;username=coinManager;password=postgresTest;Integrated Security=true;Pooling=true;Timeout=300"
例外:
System.Net.Internals.SocketExceptionFactory+ExtendedSocketException (00000005, 0xFFFDFFFF): Name or service not known
at System.Net.Dns.InternalGetHostByName(String hostName)
at System.Net.Dns.GetHostAddresses(String hostNameOrAddress)
at Npgsql.NpgsqlConnector.Connect(NpgsqlTimeout timeout)
at Npgsql.NpgsqlConnector.RawOpen(NpgsqlTimeout timeout, Boolean async, CancellationToken cancellationToken)
at Npgsql.NpgsqlConnector.Open(NpgsqlTimeout timeout, Boolean async, CancellationToken cancellationToken)
at Npgsql.NpgsqlConnection.<>c__DisplayClass32_0.<<Open>g__OpenLong|0>d.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at Npgsql.NpgsqlConnection.Open()
at Npgsql.EntityFrameworkCore.PostgreSQL.Storage.Internal.NpgsqlDatabaseCreator.Exists()
at Microsoft.EntityFrameworkCore.Migrations.HistoryRepository.Exists()
at Microsoft.EntityFrameworkCore.Migrations.Internal.Migrator.Migrate(String targetMigration)
at Microsoft.EntityFrameworkCore.RelationalDatabaseFacadeExtensions.Migrate(DatabaseFacade databaseFacade)
at CoinManager.Startup.Configure(IApplicationBuilder app, IWebHostEnvironment env, IServiceProvider serviceProvider) in /app/CoinManager/Startup.cs:line 86
at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor, Boolean wrapExceptions)
at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
at Microsoft.AspNetCore.Hosting.ConfigureBuilder.Invoke(Object instance, IApplicationBuilder builder)
at Microsoft.AspNetCore.Hosting.ConfigureBuilder.<>c__DisplayClass4_0.<Build>b__0(IApplicationBuilder builder)
at Microsoft.AspNetCore.Hosting.GenericWebHostBuilder.<>c__DisplayClass13_0.<UseStartup>b__2(IApplicationBuilder app)
at Microsoft.AspNetCore.Mvc.Filters.MiddlewareFilterBuilderStartupFilter.<>c__DisplayClass0_0.<Configure>g__MiddlewareFilterBuilder|0(IApplicationBuilder builder)
at Microsoft.AspNetCore.HostFilteringStartupFilter.<>c__DisplayClass0_0.<Configure>b__0(IApplicationBuilder app)
at Microsoft.AspNetCore.Hosting.GenericWebHostService.StartAsync(CancellationToken cancellationToken)
Unhandled exception. System.Net.Internals.SocketExceptionFactory+ExtendedSocketException (00000005, 0xFFFDFFFF): Name or service not known
at System.Net.Dns.InternalGetHostByName(String hostName)
at System.Net.Dns.GetHostAddresses(String hostNameOrAddress)
at Npgsql.NpgsqlConnector.Connect(NpgsqlTimeout timeout)
at Npgsql.NpgsqlConnector.RawOpen(NpgsqlTimeout timeout, Boolean async, CancellationToken cancellationToken)
at Npgsql.NpgsqlConnector.Open(NpgsqlTimeout timeout, Boolean async, CancellationToken cancellationToken)
at Npgsql.NpgsqlConnection.<>c__DisplayClass32_0.<<Open>g__OpenLong|0>d.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at Npgsql.NpgsqlConnection.Open()
at Npgsql.EntityFrameworkCore.PostgreSQL.Storage.Internal.NpgsqlDatabaseCreator.Exists()
at Microsoft.EntityFrameworkCore.Migrations.HistoryRepository.Exists()
at Microsoft.EntityFrameworkCore.Migrations.Internal.Migrator.Migrate(String targetMigration)
at Microsoft.EntityFrameworkCore.RelationalDatabaseFacadeExtensions.Migrate(DatabaseFacade databaseFacade)
at CoinManager.Startup.Configure(IApplicationBuilder app, IWebHostEnvironment env, IServiceProvider serviceProvider) in /app/CoinManager/Startup.cs:line 86
at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor, Boolean wrapExceptions)
at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
at Microsoft.AspNetCore.Hosting.ConfigureBuilder.Invoke(Object instance, IApplicationBuilder builder)
at Microsoft.AspNetCore.Hosting.ConfigureBuilder.<>c__DisplayClass4_0.<Build>b__0(IApplicationBuilder builder)
at Microsoft.AspNetCore.Hosting.GenericWebHostBuilder.<>c__DisplayClass13_0.<UseStartup>b__2(IApplicationBuilder app)
at Microsoft.AspNetCore.Mvc.Filters.MiddlewareFilterBuilderStartupFilter.<>c__DisplayClass0_0.<Configure>g__MiddlewareFilterBuilder|0(IApplicationBuilder builder)
at Microsoft.AspNetCore.HostFilteringStartupFilter.<>c__DisplayClass0_0.<Configure>b__0(IApplicationBuilder app)
at Microsoft.AspNetCore.Hosting.GenericWebHostService.StartAsync(CancellationToken cancellationToken)
at Microsoft.Extensions.Hosting.Internal.Host.StartAsync(CancellationToken cancellationToken)
at Microsoft.Extensions.Hosting.HostingAbstractionsHostExtensions.RunAsync(IHost host, CancellationToken token)
at Microsoft.Extensions.Hosting.HostingAbstractionsHostExtensions.RunAsync(IHost host, CancellationToken token)
at Microsoft.Extensions.Hosting.HostingAbstractionsHostExtensions.Run(IHost host)
at CoinManager.Program.Main(String[] args) in /app/CoinManager/Program.cs:line 17
我刪除了網絡配置。 我的 docker 撰寫文件現在看起來像這樣並且它可以工作:
version: '3.8'
services:
postgres_test_db:
image: postgres:11.4
container_
name: postgres_test
environment:
POSTGRES_USER: coinManager
POSTGRES_PASSWORD: postgresTest
POSTGRES_DB: coinManagerTest
restart: always
volumes:
- /coinManager/postgres/test/data:/var/lib/postgresql/data
ports:
- '5433:5432'
web_test:
build: ./papasmuenzenbackend/.
container_name: api_test
ports:
- '50599:80'
depends_on:
- postgres_test_db
environment:
- ASPNETCORE_ENVIRONMENT=Test
client_test:
build: ./papasmuenzenfrontend/.
container_name: vue_test
restart: always
ports:
- '8081:8080'
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