create aspnet api with postgresql

This version added a compose application using:
* ASP.Net API Core
* EntityFramework Core
* Postgresql

Signed-off-by: Eduardo Silva <eduardo.lour.silva@gmail.com>

README.md

@@ -20,6 +20,8 @@ These samples provide a starting point for how to integrate different services u
 ## Samples of Docker Compose applications with multiple integrated services
 - [`ASP.NET / MS-SQL`](https://github.com/docker/awesome-compose/tree/master/aspnet-mssql) - Sample ASP.NET core application
 with MS SQL server database.
+- [`ASP.NET / Postgresql`](https://github.com/docker/awesome-compose/tree/master/aspnet-api-postgresql) - Sample ASP.NET core application
+with Postgresql server database.
 - [`Elasticsearch / Logstash / Kibana`](https://github.com/docker/awesome-compose/tree/master/elasticsearch-logstash-kibana) - Sample Elasticsearch, Logstash, and Kibana stack.
 - [`Go / NGINX / MySQL`](https://github.com/docker/awesome-compose/tree/master/nginx-golang-mysql) - Sample Go application
 with an Nginx proxy and a MySQL database.

aspnet-api-postgresql/.gitignore

@@ -0,0 +1,285 @@
+
+# Created by https://www.gitignore.io/api/csharp
+
+### Csharp ###
+## Ignore Visual Studio temporary files, build results, and
+## files generated by popular Visual Studio add-ons.
+
+# User-specific files
+*.suo
+*.user
+*.userosscache
+*.sln.docstates
+
+# User-specific files (MonoDevelop/Xamarin Studio)
+*.userprefs
+
+# Build results
+[Dd]ebug/
+[Dd]ebugPublic/
+[Rr]elease/
+[Rr]eleases/
+x64/
+x86/
+bld/
+[Bb]in/
+[Oo]bj/
+[Ll]og/
+
+# Visual Studio 2015 cache/options directory
+.vs/
+# Uncomment if you have tasks that create the project's static files in wwwroot
+#wwwroot/
+
+# MSTest test Results
+[Tt]est[Rr]esult*/
+[Bb]uild[Ll]og.*
+
+# NUNIT
+*.VisualState.xml
+TestResult.xml
+
+# Build Results of an ATL Project
+[Dd]ebugPS/
+[Rr]eleasePS/
+dlldata.c
+
+# DNX
+project.lock.json
+project.fragment.lock.json
+artifacts/
+Properties/launchSettings.json
+
+*_i.c
+*_p.c
+*_i.h
+*.ilk
+*.meta
+*.obj
+*.pch
+*.pdb
+*.pgc
+*.pgd
+*.rsp
+*.sbr
+*.tlb
+*.tli
+*.tlh
+*.tmp
+*.tmp_proj
+*.log
+*.vspscc
+*.vssscc
+.builds
+*.pidb
+*.svclog
+*.scc
+
+# Chutzpah Test files
+_Chutzpah*
+
+# Visual C++ cache files
+ipch/
+*.aps
+*.ncb
+*.opendb
+*.opensdf
+*.sdf
+*.cachefile
+*.VC.db
+*.VC.VC.opendb
+
+# Visual Studio profiler
+*.psess
+*.vsp
+*.vspx
+*.sap
+
+# TFS 2012 Local Workspace
+$tf/
+
+# Guidance Automation Toolkit
+*.gpState
+
+# ReSharper is a .NET coding add-in
+_ReSharper*/
+*.[Rr]e[Ss]harper
+*.DotSettings.user
+
+# JustCode is a .NET coding add-in
+.JustCode
+
+# TeamCity is a build add-in
+_TeamCity*
+
+# DotCover is a Code Coverage Tool
+*.dotCover
+
+# Visual Studio code coverage results
+*.coverage
+*.coveragexml
+
+# NCrunch
+_NCrunch_*
+.*crunch*.local.xml
+nCrunchTemp_*
+
+# MightyMoose
+*.mm.*
+AutoTest.Net/
+
+# Web workbench (sass)
+.sass-cache/
+
+# Installshield output folder
+[Ee]xpress/
+
+# DocProject is a documentation generator add-in
+DocProject/buildhelp/
+DocProject/Help/*.HxT
+DocProject/Help/*.HxC
+DocProject/Help/*.hhc
+DocProject/Help/*.hhk
+DocProject/Help/*.hhp
+DocProject/Help/Html2
+DocProject/Help/html
+
+# Click-Once directory
+publish/
+
+# Publish Web Output
+*.[Pp]ublish.xml
+*.azurePubxml
+# TODO: Comment the next line if you want to checkin your web deploy settings
+# but database connection strings (with potential passwords) will be unencrypted
+*.pubxml
+*.publishproj
+
+# Microsoft Azure Web App publish settings. Comment the next line if you want to
+# checkin your Azure Web App publish settings, but sensitive information contained
+# in these scripts will be unencrypted
+PublishScripts/
+
+# NuGet Packages
+*.nupkg
+# The packages folder can be ignored because of Package Restore
+**/packages/*
+# except build/, which is used as an MSBuild target.
+!**/packages/build/
+# Uncomment if necessary however generally it will be regenerated when needed
+#!**/packages/repositories.config
+# NuGet v3's project.json files produces more ignoreable files
+*.nuget.props
+*.nuget.targets
+
+# Microsoft Azure Build Output
+csx/
+*.build.csdef
+
+# Microsoft Azure Emulator
+ecf/
+rcf/
+
+# Windows Store app package directories and files
+AppPackages/
+BundleArtifacts/
+Package.StoreAssociation.xml
+_pkginfo.txt
+
+# Visual Studio cache files
+# files ending in .cache can be ignored
+*.[Cc]ache
+# but keep track of directories ending in .cache
+!*.[Cc]ache/
+
+# Others
+ClientBin/
+~$*
+*~
+*.dbmdl
+*.dbproj.schemaview
+*.jfm
+*.pfx
+*.publishsettings
+node_modules/
+orleans.codegen.cs
+
+# Since there are multiple workflows, uncomment next line to ignore bower_components
+# (https://github.com/github/gitignore/pull/1529#issuecomment-104372622)
+#bower_components/
+
+# RIA/Silverlight projects
+Generated_Code/
+
+# Backup & report files from converting an old project file
+# to a newer Visual Studio version. Backup files are not needed,
+# because we have git ;-)
+_UpgradeReport_Files/
+Backup*/
+UpgradeLog*.XML
+UpgradeLog*.htm
+
+# SQL Server files
+*.mdf
+*.ldf
+
+# Business Intelligence projects
+*.rdl.data
+*.bim.layout
+*.bim_*.settings
+
+# Microsoft Fakes
+FakesAssemblies/
+
+# GhostDoc plugin setting file
+*.GhostDoc.xml
+
+# Node.js Tools for Visual Studio
+.ntvs_analysis.dat
+
+# Visual Studio 6 build log
+*.plg
+
+# Visual Studio 6 workspace options file
+*.opt
+
+# Visual Studio 6 auto-generated workspace file (contains which files were open etc.)
+*.vbw
+
+# Visual Studio LightSwitch build output
+**/*.HTMLClient/GeneratedArtifacts
+**/*.DesktopClient/GeneratedArtifacts
+**/*.DesktopClient/ModelManifest.xml
+**/*.Server/GeneratedArtifacts
+**/*.Server/ModelManifest.xml
+_Pvt_Extensions
+
+# Paket dependency manager
+.paket/paket.exe
+paket-files/
+
+# FAKE - F# Make
+.fake/
+
+# JetBrains Rider
+.idea/
+*.sln.iml
+
+# CodeRush
+.cr/
+
+# Python Tools for Visual Studio (PTVS)
+__pycache__/
+*.pyc
+
+# Cake - Uncomment if you are using it
+# tools/
+tools/Cake.CoreCLR
+.vscode
+tools
+.dotnet
+
+# .env file contains default environment variables for docker
+.env
+
+.DS_Store

aspnet-api-postgresql/README.md

@@ -0,0 +1,62 @@
+## Compose sample application: ASP.Net API with Postgresql database
+
+Project Structure
+```
+.
+├── api
+│   ├── appsettings.json
+│   ├── ...
+└── docker-compose.yaml
+```
+[_docker-compose.yaml](docker-compose.yml)
+
+```
+services:
+  api:
+    image: mcr.microsoft.com/dotnet/sdk
+    container_name: "api"
+    ports:
+      - 5000:5000
+    ...
+  db:
+      image: postgres:10.5
+      restart: always
+      ...
+```
+
+The compose file defines an application with two services `api` and `db`. The api service is configured without a Dockerfile and to run using your local volume in `watch` mode.
+
+## Deploy with docker-compose
+
+```
+$ docker-compose up -d
+Pulling db (postgres:10.5)...
+10.5: Pulling from library/postgres
+...
+Status: Downloaded newer image for postgres:10.5
+Pulling api (mcr.microsoft.com/dotnet/sdk:)...
+latest: Pulling from dotnet/sdk
+...
+Status: Downloaded newer image for mcr.microsoft.com/dotnet/sdk:latest
+Creating aspnet-api-postgresql_db_1 ... done
+Creating api                        ... done
+```
+
+## Expected result
+
+```
+$ docker ps
+CONTAINER ID   IMAGE                          COMMAND                  CREATED              STATUS              PORTS                                       NAMES
+48c8a8911cfb   mcr.microsoft.com/dotnet/sdk   "dotnet watch run --…"   About a minute ago   Up About a minute   0.0.0.0:5000->5000/tcp, :::5000->5000/tcp   api
+84082957734e   postgres:10.5                  "docker-entrypoint.s…"   About a minute ago   Up About a minute   0.0.0.0:5432->5432/tcp, :::5432->5432/tcp   aspnet-api-postgresql_db_1
+```
+
+After the application starts, navigate to http://localhost:5000/swagger/index.html in your web browser.
+
+![page](output.png)
+
+Stop and remove the containers
+
+```
+$ docker-compose down
+```

aspnet-api-postgresql/api/.dockerignore

@@ -0,0 +1,284 @@
+# Created by https://www.gitignore.io/api/csharp
+
+### Csharp ###
+## Ignore Visual Studio temporary files, build results, and
+## files generated by popular Visual Studio add-ons.
+
+# User-specific files
+*.suo
+*.user
+*.userosscache
+*.sln.docstates
+
+# User-specific files (MonoDevelop/Xamarin Studio)
+*.userprefs
+
+# Build results
+[Dd]ebug/
+[Dd]ebugPublic/
+[Rr]elease/
+[Rr]eleases/
+x64/
+x86/
+bld/
+[Bb]in/
+[Oo]bj/
+[Ll]og/
+
+# Visual Studio 2015 cache/options directory
+.vs/
+# Uncomment if you have tasks that create the project's static files in wwwroot
+#wwwroot/
+
+# MSTest test Results
+[Tt]est[Rr]esult*/
+[Bb]uild[Ll]og.*
+
+# NUNIT
+*.VisualState.xml
+TestResult.xml
+
+# Build Results of an ATL Project
+[Dd]ebugPS/
+[Rr]eleasePS/
+dlldata.c
+
+# DNX
+project.lock.json
+project.fragment.lock.json
+artifacts/
+Properties/launchSettings.json
+
+*_i.c
+*_p.c
+*_i.h
+*.ilk
+*.meta
+*.obj
+*.pch
+*.pdb
+*.pgc
+*.pgd
+*.rsp
+*.sbr
+*.tlb
+*.tli
+*.tlh
+*.tmp
+*.tmp_proj
+*.log
+*.vspscc
+*.vssscc
+.builds
+*.pidb
+*.svclog
+*.scc
+
+# Chutzpah Test files
+_Chutzpah*
+
+# Visual C++ cache files
+ipch/
+*.aps
+*.ncb
+*.opendb
+*.opensdf
+*.sdf
+*.cachefile
+*.VC.db
+*.VC.VC.opendb
+
+# Visual Studio profiler
+*.psess
+*.vsp
+*.vspx
+*.sap
+
+# TFS 2012 Local Workspace
+$tf/
+
+# Guidance Automation Toolkit
+*.gpState
+
+# ReSharper is a .NET coding add-in
+_ReSharper*/
+*.[Rr]e[Ss]harper
+*.DotSettings.user
+
+# JustCode is a .NET coding add-in
+.JustCode
+
+# TeamCity is a build add-in
+_TeamCity*
+
+# DotCover is a Code Coverage Tool
+*.dotCover
+
+# Visual Studio code coverage results
+*.coverage
+*.coveragexml
+
+# NCrunch
+_NCrunch_*
+.*crunch*.local.xml
+nCrunchTemp_*
+
+# MightyMoose
+*.mm.*
+AutoTest.Net/
+
+# Web workbench (sass)
+.sass-cache/
+
+# Installshield output folder
+[Ee]xpress/
+
+# DocProject is a documentation generator add-in
+DocProject/buildhelp/
+DocProject/Help/*.HxT
+DocProject/Help/*.HxC
+DocProject/Help/*.hhc
+DocProject/Help/*.hhk
+DocProject/Help/*.hhp
+DocProject/Help/Html2
+DocProject/Help/html
+
+# Click-Once directory
+publish/
+
+# Publish Web Output
+*.[Pp]ublish.xml
+*.azurePubxml
+# TODO: Comment the next line if you want to checkin your web deploy settings
+# but database connection strings (with potential passwords) will be unencrypted
+*.pubxml
+*.publishproj
+
+# Microsoft Azure Web App publish settings. Comment the next line if you want to
+# checkin your Azure Web App publish settings, but sensitive information contained
+# in these scripts will be unencrypted
+PublishScripts/
+
+# NuGet Packages
+*.nupkg
+# The packages folder can be ignored because of Package Restore
+**/packages/*
+# except build/, which is used as an MSBuild target.
+!**/packages/build/
+# Uncomment if necessary however generally it will be regenerated when needed
+#!**/packages/repositories.config
+# NuGet v3's project.json files produces more ignoreable files
+*.nuget.props
+*.nuget.targets
+
+# Microsoft Azure Build Output
+csx/
+*.build.csdef
+
+# Microsoft Azure Emulator
+ecf/
+rcf/
+
+# Windows Store app package directories and files
+AppPackages/
+BundleArtifacts/
+Package.StoreAssociation.xml
+_pkginfo.txt
+
+# Visual Studio cache files
+# files ending in .cache can be ignored
+*.[Cc]ache
+# but keep track of directories ending in .cache
+!*.[Cc]ache/
+
+# Others
+ClientBin/
+~$*
+*~
+*.dbmdl
+*.dbproj.schemaview
+*.jfm
+*.pfx
+*.publishsettings
+node_modules/
+orleans.codegen.cs
+
+# Since there are multiple workflows, uncomment next line to ignore bower_components
+# (https://github.com/github/gitignore/pull/1529#issuecomment-104372622)
+#bower_components/
+
+# RIA/Silverlight projects
+Generated_Code/
+
+# Backup & report files from converting an old project file
+# to a newer Visual Studio version. Backup files are not needed,
+# because we have git ;-)
+_UpgradeReport_Files/
+Backup*/
+UpgradeLog*.XML
+UpgradeLog*.htm
+
+# SQL Server files
+*.mdf
+*.ldf
+
+# Business Intelligence projects
+*.rdl.data
+*.bim.layout
+*.bim_*.settings
+
+# Microsoft Fakes
+FakesAssemblies/
+
+# GhostDoc plugin setting file
+*.GhostDoc.xml
+
+# Node.js Tools for Visual Studio
+.ntvs_analysis.dat
+
+# Visual Studio 6 build log
+*.plg
+
+# Visual Studio 6 workspace options file
+*.opt
+
+# Visual Studio 6 auto-generated workspace file (contains which files were open etc.)
+*.vbw
+
+# Visual Studio LightSwitch build output
+**/*.HTMLClient/GeneratedArtifacts
+**/*.DesktopClient/GeneratedArtifacts
+**/*.DesktopClient/ModelManifest.xml
+**/*.Server/GeneratedArtifacts
+**/*.Server/ModelManifest.xml
+_Pvt_Extensions
+
+# Paket dependency manager
+.paket/paket.exe
+paket-files/
+
+# FAKE - F# Make
+.fake/
+
+# JetBrains Rider
+.idea/
+*.sln.iml
+
+# CodeRush
+.cr/
+
+# Python Tools for Visual Studio (PTVS)
+__pycache__/
+*.pyc
+
+# Cake - Uncomment if you are using it
+# tools/
+tools/Cake.CoreCLR
+.vscode
+tools
+.dotnet
+Dockerfile
+
+# .env file contains default environment variables for docker
+.env
+.git/

aspnet-api-postgresql/api/Controllers/HealthCheckController.cs

@@ -0,0 +1,36 @@
+using aspnet_api_postgresql.Infrastructure.Database;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.EntityFrameworkCore;
+
+namespace aspnet_api_postgresql.Controllers;
+
+[ApiController]
+[Route("[controller]")]
+public class HealthCheckController : ControllerBase
+{
+    private readonly ILogger<HealthCheckController> _logger;
+    private readonly ApplicationDbContext _dbContext;
+
+    public HealthCheckController(ApplicationDbContext dbContext, ILogger<HealthCheckController> logger)
+    {
+        _logger = logger;
+        _dbContext = dbContext;
+    }
+
+    [HttpGet]
+    public string Ping()
+    {
+        try
+        {
+            _dbContext.Database.OpenConnection();
+            _dbContext.Database.ExecuteSqlRaw("SELECT 1");
+            _dbContext.Database.CloseConnection();
+            return "OK";
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Error connecting to database");
+            return "Error connecting to database";
+        }
+    }
+}

aspnet-api-postgresql/api/Infrastructure/ApplicationDbContext.cs

@@ -0,0 +1,11 @@
+using Microsoft.EntityFrameworkCore;
+
+namespace aspnet_api_postgresql.Infrastructure.Database;
+public class ApplicationDbContext : DbContext
+{
+    public ApplicationDbContext(DbContextOptions<ApplicationDbContext> options)
+        : base(options)
+    {
+    }
+
+}

aspnet-api-postgresql/api/Infrastructure/Database/Migrations/20220411183355_InititalCreation.Designer.cs

@@ -0,0 +1,28 @@
+// <auto-generated />
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+using aspnet_api_postgresql.Infrastructure.Database;
+
+#nullable disable
+
+namespace aspnet_api_postgresql.Infrastructure.Database.Migrations
+{
+    [DbContext(typeof(ApplicationDbContext))]
+    [Migration("20220411183355_InititalCreation")]
+    partial class InititalCreation
+    {
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "6.0.1")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+#pragma warning restore 612, 618
+        }
+    }
+}

aspnet-api-postgresql/api/Infrastructure/Database/Migrations/20220411183355_InititalCreation.cs

@@ -0,0 +1,19 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace aspnet_api_postgresql.Infrastructure.Database.Migrations
+{
+    public partial class InititalCreation : Migration
+    {
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+
+        }
+
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+
+        }
+    }
+}

aspnet-api-postgresql/api/Infrastructure/Database/Migrations/ApplicationDbContextModelSnapshot.cs

@@ -0,0 +1,26 @@
+// <auto-generated />
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+using aspnet_api_postgresql.Infrastructure.Database;
+
+#nullable disable
+
+namespace aspnet_api_postgresql.Infrastructure.Database.Migrations
+{
+    [DbContext(typeof(ApplicationDbContext))]
+    partial class ApplicationDbContextModelSnapshot : ModelSnapshot
+    {
+        protected override void BuildModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "6.0.1")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+#pragma warning restore 612, 618
+        }
+    }
+}

aspnet-api-postgresql/api/Program.cs

@@ -0,0 +1,49 @@
+using System.Reflection;
+using aspnet_api_postgresql.Infrastructure.Database;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.OpenApi.Models;
+
+var builder = WebApplication.CreateBuilder(args);
+
+// Add services to the container.
+builder.Services.AddDbContext<ApplicationDbContext>(options =>
+    options.UseNpgsql(builder.Configuration.GetConnectionString("DefaultConnection"))
+           .UseSnakeCaseNamingConvention());
+
+builder.Services.AddControllers();
+// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
+builder.Services.AddEndpointsApiExplorer();
+builder.Services.AddSwaggerGen(_ =>
+{
+    _.SwaggerDoc("v1", new OpenApiInfo
+    {
+        Version = "v1",
+        Title = "ASP.NET Core Web API",
+    });
+
+    var xmlFilename = $"{Assembly.GetExecutingAssembly().GetName().Name}.xml";
+    _.IncludeXmlComments(Path.Combine(AppContext.BaseDirectory, xmlFilename));
+
+});
+
+var app = builder.Build();
+
+// Configure the HTTP request pipeline.
+if (app.Environment.IsDevelopment())
+{
+    using (var scope = app.Services.CreateScope())
+    {
+        var db = scope.ServiceProvider.GetRequiredService<ApplicationDbContext>();
+        db.Database.Migrate();
+    }
+    app.UseSwagger();
+    app.UseSwaggerUI();
+}
+
+app.UseHttpsRedirection();
+
+app.UseAuthorization();
+
+app.MapControllers();
+
+app.Run();

aspnet-api-postgresql/api/Properties/launchSettings.json

@@ -0,0 +1,31 @@
+{
+  "$schema": "https://json.schemastore.org/launchsettings.json",
+  "iisSettings": {
+    "windowsAuthentication": false,
+    "anonymousAuthentication": true,
+    "iisExpress": {
+      "applicationUrl": "http://localhost:47446",
+      "sslPort": 44370
+    }
+  },
+  "profiles": {
+    "aspnet_api_postgresql": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "launchUrl": "swagger",
+      "applicationUrl": "https://localhost:7234;http://localhost:5260",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "IIS Express": {
+      "commandName": "IISExpress",
+      "launchBrowser": true,
+      "launchUrl": "swagger",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    }
+  }
+}

aspnet-api-postgresql/api/appsettings.Development.json

@@ -0,0 +1,8 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  }
+}

aspnet-api-postgresql/api/appsettings.json

@@ -0,0 +1,12 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  },
+  "AllowedHosts": "*",
+  "ConnectionStrings": {
+    "DefaultConnection": "Host=db;Username=postgres;Password=postgres;Database=aspnetapipostgresqldb"
+  }
+}

aspnet-api-postgresql/api/aspnet-api-postgresql.csproj

@@ -0,0 +1,26 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <RootNamespace>aspnet_api_postgresql</RootNamespace>
+  </PropertyGroup>
+  <PropertyGroup>
+    <GenerateDocumentationFile>true</GenerateDocumentationFile>
+    <NoWarn>$(NoWarn);1591</NoWarn>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Swashbuckle.AspNetCore" Version="6.2.3" />
+    <PackageReference Include="EFCore.NamingConventions" Version="6.0.0" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="6.0.1">
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+      <PrivateAssets>all</PrivateAssets>
+    </PackageReference>
+    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="6.0.2" />
+
+
+  </ItemGroup>
+
+</Project>

aspnet-api-postgresql/aspnet-api-postgresql.sln

@@ -0,0 +1,22 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 16
+VisualStudioVersion = 16.0.30114.105
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "aspnet-api-postgresql", "api\aspnet-api-postgresql.csproj", "{8260F100-34F4-4DC3-B6A5-FCF28A4DBEC4}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{8260F100-34F4-4DC3-B6A5-FCF28A4DBEC4}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{8260F100-34F4-4DC3-B6A5-FCF28A4DBEC4}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{8260F100-34F4-4DC3-B6A5-FCF28A4DBEC4}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{8260F100-34F4-4DC3-B6A5-FCF28A4DBEC4}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+EndGlobal

aspnet-api-postgresql/docker-compose.yml

@@ -0,0 +1,28 @@
+version: '3.7'
+services:
+  api:
+    image: mcr.microsoft.com/dotnet/sdk
+    container_name: "api"
+    ports:
+      - 5000:5000
+    working_dir: /api
+    volumes:
+      - ./api:/api
+    command: ["dotnet", "watch", "run", "--urls=http://0.0.0.0:5000/"]
+    depends_on:
+      - "db"
+  db:
+      image: postgres:10.5
+      restart: always
+      environment:
+        POSTGRES_USER: "postgres"
+        POSTGRES_PASSWORD: "postgres"
+        POSTGRES_DB: "aspnetapipostgresqldb"
+      logging:
+        options:
+          max-size: 10m
+          max-file: "3"
+      ports:
+        - '5432:5432'
+      volumes: 
+        - ./postgres-data:/var/lib/postgresql/data