issue #32: add postgresql support

internal/model/merge.go

@@ -1,6 +1,8 @@
 package model
 
-import "sort"
+import (
+	"sort"
+)
 
 func (app *Application) Merge(apps ...Application) {
 	if app == nil {
@@ -132,6 +134,28 @@ func (logger *Logger) Merge(src *Logger) {
 	}
 }
 
+func (postgres *PostgreSQL) Merge(src *PostgreSQL) {
+	if postgres == nil || src == nil {
+		return
+	}
+
+	if src.Version != "" {
+		postgres.Version = src.Version
+	}
+	if src.Size != "" {
+		postgres.Size = src.Size
+	}
+	if src.Enabled != nil {
+		postgres.Enabled = src.Enabled
+	}
+	if src.OwnName != nil {
+		postgres.OwnName = src.OwnName
+	}
+	if src.Fixtures != nil {
+		postgres.Fixtures = src.Fixtures
+	}
+}
+
 func (proxies *Proxies) Merge(src Proxies) {
 	if proxies == nil || len(src) == 0 {
 		return
@@ -248,6 +272,11 @@ func (spec *Specification) Merge(src *Specification) {
 	}
 	spec.Balancing.Merge(src.Balancing)
 
+	if src.PostgreSQL != nil && spec.PostgreSQL == nil {
+		spec.PostgreSQL = new(PostgreSQL)
+	}
+	spec.PostgreSQL.Merge(src.PostgreSQL)
+
 	if src.SFTP != nil && spec.SFTP == nil {
 		spec.SFTP = new(SFTP)
 	}

internal/model/specification.go

@@ -78,6 +78,14 @@ type Logger struct {
 	Level string `toml:"level,omitempty"`
 }
 
+type PostgreSQL struct {
+	Version  string `toml:"version,omitempty"`
+	Size     string `toml:"size,omitempty"`
+	Enabled  *bool  `toml:"enabled,omitempty"`
+	OwnName  *bool  `toml:"use_own_maintenance_table_name,omitempty"`
+	Fixtures *bool  `toml:"fixtures_enabled,omitempty"`
+}
+
 type Proxy struct {
 	Name    string `toml:"name,omitempty"`
 	Enabled *bool  `toml:"enabled,omitempty"`
@@ -126,6 +134,7 @@ type Specification struct {
 	Engine       *Engine              `toml:"engine,omitempty"`
 	Logger       *Logger              `toml:"logger,omitempty"`
 	Balancing    *Balancing           `toml:"balancing,omitempty"`
+	PostgreSQL   *PostgreSQL          `toml:"postgresql,omitempty"`
 	SFTP         *SFTP                `toml:"sftp,omitempty"`
 	Crons        Crons                `toml:"crons,omitepmty"`
 	Dependencies Dependencies         `toml:"dependencies,omitempty"`

internal/model/testdata/app.toml

@@ -138,6 +138,13 @@ replicas = 1
 [logger]
   level = "info"
 
+[postgresql]
+  enabled = true
+  fixtures_enabled = false
+  size = "medium"
+  use_own_maintenance_table_name = false
+  version = "9.6"
+
 [[proxy]]
   enabled = true
   name = "s3"

internal/model/testdata/components/storages/postgresql.toml

@@ -0,0 +1,7 @@
+[postgresql]
+enabled = true
+size = "medium"
+version = "9.6"
+
+use_own_maintenance_table_name = false
+fixtures_enabled = false