Pass an atomic_upgrade setting to the Upgrade step [#64]

docs/parameter_reference.md

@@ -38,6 +38,7 @@ Installations are triggered when the `helm_command` setting is "upgrade." They c
 | wait                   | boolean        |          | Wait until kubernetes resources are in a ready state before marking the installation successful. |
 | timeout                | duration       |          | Timeout for any *individual* Kubernetes operation. The installation's full runtime may exceed this duration. |
 | force                  | boolean        |          | Pass `--force` to `helm upgrade`. |
+| atomic_upgrade         | boolean        |          | Pass `--atomic` to `helm upgrade`. |
 | values                 | list\<string\> |          | Chart values to use as the `--set` argument to `helm upgrade`. |
 | string_values          | list\<string\> |          | Chart values to use as the `--set-string` argument to `helm upgrade`. |
 | values_files           | list\<string\> |          | Values to use as `--values` arguments to `helm upgrade`. |

internal/helm/config.go

@@ -43,6 +43,7 @@ type Config struct {
 	Chart              string   ``                                   // Chart argument to use in applicable helm commands
 	Release            string   ``                                   // Release argument to use in applicable helm commands
 	Force              bool     ``                                   // Pass --force to applicable helm commands
+	AtomicUpgrade      bool     `split_words:"true"`                 // Pass --atomic to `helm upgrade`
 	LintStrictly       bool     `split_words:"true"`                 // Pass --strict to `helm lint`
 
 	Stdout io.Writer `ignored:"true"`

internal/helm/plan.go

@@ -109,6 +109,7 @@ var upgrade = func(cfg Config) []Step {
 		ReuseValues:  cfg.ReuseValues,
 		Timeout:      cfg.Timeout,
 		Force:        cfg.Force,
+		Atomic:       cfg.AtomicUpgrade,
 	})
 
 	return steps

internal/helm/plan_test.go

@@ -130,17 +130,18 @@ func (suite *PlanTestSuite) TestExecuteAbortsOnError() {
 
 func (suite *PlanTestSuite) TestUpgrade() {
 	cfg := Config{
-		ChartVersion: "seventeen",
-		DryRun:       true,
-		Wait:         true,
-		Values:       "steadfastness,forthrightness",
-		StringValues: "tensile_strength,flexibility",
-		ValuesFiles:  []string{"/root/price_inventory.yml"},
-		ReuseValues:  true,
-		Timeout:      "go sit in the corner",
-		Chart:        "billboard_top_100",
-		Release:      "post_malone_circles",
-		Force:        true,
+		ChartVersion:  "seventeen",
+		DryRun:        true,
+		Wait:          true,
+		Values:        "steadfastness,forthrightness",
+		StringValues:  "tensile_strength,flexibility",
+		ValuesFiles:   []string{"/root/price_inventory.yml"},
+		ReuseValues:   true,
+		Timeout:       "go sit in the corner",
+		Chart:         "billboard_top_100",
+		Release:       "post_malone_circles",
+		Force:         true,
+		AtomicUpgrade: true,
 	}
 
 	steps := upgrade(cfg)
@@ -162,6 +163,7 @@ func (suite *PlanTestSuite) TestUpgrade() {
 		ReuseValues:  cfg.ReuseValues,
 		Timeout:      cfg.Timeout,
 		Force:        cfg.Force,
+		Atomic:       true,
 	}
 
 	suite.Equal(expected, upgrade)