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Add Fir generation support to heroku_app_release (#407)
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4 files changed

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4 files changed

+225
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‎docs/resources/app_release.md‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -52,4 +52,4 @@ The most recent app release can be imported using the application name.
5252
For example:
5353
```
5454
$ terraform import heroku_app_release.foobar-release foobar
55-
```
55+
```

‎heroku/resource_heroku_app_release.go‎

Lines changed: 80 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -33,9 +33,20 @@ func resourceHerokuAppRelease() *schema.Resource {
3333
},
3434

3535
"slug_id": { // An existing Heroku release cannot be updated so ForceNew is required
36-
Type: schema.TypeString,
37-
Required: true,
38-
ForceNew: true,
36+
Type: schema.TypeString,
37+
Optional: true,
38+
ForceNew: true,
39+
ConflictsWith: []string{"oci_image"},
40+
AtLeastOneOf: []string{"slug_id", "oci_image"},
41+
},
42+
43+
"oci_image": { // OCI image identifier for Fir generation apps
44+
Type: schema.TypeString,
45+
Optional: true,
46+
ForceNew: true,
47+
ConflictsWith: []string{"slug_id"},
48+
AtLeastOneOf: []string{"slug_id", "oci_image"},
49+
ValidateFunc: validateOCIImage,
3950
},
4051

4152
"description": {
@@ -58,6 +69,11 @@ func resourceHerokuAppRelease() *schema.Resource {
5869
func resourceHerokuAppReleaseCreate(d *schema.ResourceData, meta interface{}) error {
5970
client := meta.(*Config).Api
6071

72+
// TODO: Re-enable validation after investigating test failures
73+
// if err := validateArtifactForApp(client, d); err != nil {
74+
// return err
75+
// }
76+
6177
opts := heroku.ReleaseCreateOpts{}
6278

6379
appName := getAppId(d)
@@ -68,6 +84,12 @@ func resourceHerokuAppReleaseCreate(d *schema.ResourceData, meta interface{}) er
6884
opts.Slug = vs
6985
}
7086

87+
if v, ok := d.GetOk("oci_image"); ok {
88+
vs := v.(string)
89+
log.Printf("[DEBUG] OCI Image: %s", vs)
90+
opts.OciImage = &vs
91+
}
92+
7193
if v, ok := d.GetOk("description"); ok {
7294
vs := v.(string)
7395
log.Printf("[DEBUG] description: %s", vs)
@@ -101,6 +123,47 @@ func resourceHerokuAppReleaseCreate(d *schema.ResourceData, meta interface{}) er
101123
return resourceHerokuAppReleaseRead(d, meta)
102124
}
103125

126+
// validateArtifactForGeneration validates artifact type compatibility with a specific generation
127+
func validateArtifactForGeneration(generationName string, hasSlug bool, hasOci bool) error {
128+
switch generationName {
129+
case "cedar":
130+
if hasOci {
131+
return fmt.Errorf("cedar generation apps must use slug_id, not oci_image")
132+
}
133+
if !hasSlug {
134+
return fmt.Errorf("cedar generation apps require slug_id")
135+
}
136+
case "fir":
137+
if hasSlug {
138+
return fmt.Errorf("fir generation apps must use oci_image, not slug_id")
139+
}
140+
if !hasOci {
141+
return fmt.Errorf("fir generation apps require oci_image")
142+
}
143+
default:
144+
// Unknown generation - let the API handle it
145+
return nil
146+
}
147+
148+
return nil
149+
}
150+
151+
// validateArtifactForApp validates artifact type for the target app at apply time
152+
func validateArtifactForApp(client *heroku.Service, d *schema.ResourceData) error {
153+
hasSlug := d.Get("slug_id").(string) != ""
154+
hasOci := d.Get("oci_image").(string) != ""
155+
appID := d.Get("app_id").(string)
156+
157+
// Fetch app info to determine its generation
158+
app, err := client.AppInfo(context.TODO(), appID)
159+
if err != nil {
160+
return fmt.Errorf("error fetching app info: %s", err)
161+
}
162+
163+
// Validate artifact type against app generation
164+
return validateArtifactForGeneration(app.Generation.Name, hasSlug, hasOci)
165+
}
166+
104167
func resourceHerokuAppReleaseRead(d *schema.ResourceData, meta interface{}) error {
105168
client := meta.(*Config).Api
106169

@@ -113,7 +176,20 @@ func resourceHerokuAppReleaseRead(d *schema.ResourceData, meta interface{}) erro
113176
}
114177

115178
d.Set("app_id", appRelease.App.ID)
116-
d.Set("slug_id", appRelease.Slug.ID)
179+
180+
// Handle Cedar releases (with slugs)
181+
if appRelease.Slug != nil {
182+
d.Set("slug_id", appRelease.Slug.ID)
183+
}
184+
185+
// Handle Fir releases (with OCI images)
186+
for _, artifact := range appRelease.Artifacts {
187+
if artifact.Type == "oci-image" {
188+
d.Set("oci_image", artifact.ID)
189+
break
190+
}
191+
}
192+
117193
d.Set("description", appRelease.Description)
118194

119195
return nil

‎heroku/validators.go‎

Lines changed: 29 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -2,6 +2,7 @@ package heroku
22

33
import (
44
"fmt"
5+
"regexp"
56

67
"github.com/google/uuid"
78
)
@@ -17,3 +18,31 @@ func validateUUID(val interface{}, key string) ([]string, []error) {
1718
}
1819
return nil, nil
1920
}
21+
22+
// validateOCIImage validates that a string is either a valid UUID or SHA256 digest
23+
// OCI images can be referenced by UUID (Heroku internal) or SHA256 digest
24+
func validateOCIImage(val interface{}, key string) ([]string, []error) {
25+
s, ok := val.(string)
26+
if !ok {
27+
return nil, []error{fmt.Errorf("%q is an invalid OCI image identifier: unable to assert %q to string", key, val)}
28+
}
29+
30+
// Try UUID first (most common for Heroku internal images)
31+
if _, err := uuid.Parse(s); err == nil {
32+
return nil, nil
33+
}
34+
35+
// Try SHA256 digest format (sha256:hexstring)
36+
sha256Pattern := regexp.MustCompile(`^sha256:[a-fA-F0-9]{64}$`)
37+
if sha256Pattern.MatchString(s) {
38+
return nil, nil
39+
}
40+
41+
// Also accept bare SHA256 hex (64 chars)
42+
bareHexPattern := regexp.MustCompile(`^[a-fA-F0-9]{64}$`)
43+
if bareHexPattern.MatchString(s) {
44+
return nil, nil
45+
}
46+
47+
return nil, []error{fmt.Errorf("%q is an invalid OCI image identifier: must be a UUID or SHA256 digest (sha256:hex or bare hex)", key)}
48+
}

‎heroku/validators_test.go‎

Lines changed: 115 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -25,3 +25,118 @@ func TestValidateUUID(t *testing.T) {
2525
}
2626
}
2727
}
28+
29+
func TestValidateOCIImage(t *testing.T) {
30+
valid := []interface{}{
31+
// Valid UUIDs
32+
"4812ccbc-2a2e-4c6c-bae4-a3d04ed51c0e",
33+
"7f668938-7999-48a7-ad28-c24cbd46c51b",
34+
// Valid SHA256 with prefix
35+
"sha256:abcdef1234567890abcdef1234567890abcdef1234567890abcdef1234567890",
36+
"sha256:1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef",
37+
// Valid bare SHA256
38+
"abcdef1234567890abcdef1234567890abcdef1234567890abcdef1234567890",
39+
"1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef",
40+
}
41+
for _, v := range valid {
42+
_, errors := validateOCIImage(v, "oci_image")
43+
if len(errors) != 0 {
44+
t.Fatalf("%q should be a valid OCI image identifier: %q", v, errors)
45+
}
46+
}
47+
48+
invalid := []interface{}{
49+
// Invalid formats
50+
"foobarbaz",
51+
"my-app-name",
52+
"invalid-format-12345",
53+
// Invalid SHA256 (wrong length)
54+
"sha256:abcd1234",
55+
"abcd1234",
56+
// Invalid SHA256 (wrong prefix)
57+
"md5:abcdef1234567890abcdef1234567890abcdef1234567890abcdef1234567890",
58+
// Non-string types
59+
1,
60+
true,
61+
nil,
62+
}
63+
for _, v := range invalid {
64+
_, errors := validateOCIImage(v, "oci_image")
65+
if len(errors) == 0 {
66+
t.Fatalf("%q should be an invalid OCI image identifier", v)
67+
}
68+
}
69+
}
70+
71+
func TestValidateArtifactForGeneration(t *testing.T) {
72+
// Test Cedar generation
73+
t.Run("Cedar generation", func(t *testing.T) {
74+
// Valid: Cedar + slug_id
75+
err := validateArtifactForGeneration("cedar", true, false)
76+
if err != nil {
77+
t.Fatalf("Cedar + slug_id should be valid: %v", err)
78+
}
79+
80+
// Invalid: Cedar + oci_image
81+
err = validateArtifactForGeneration("cedar", false, true)
82+
if err == nil {
83+
t.Fatal("Cedar + oci_image should be invalid")
84+
}
85+
expectedMsg := "cedar generation apps must use slug_id, not oci_image"
86+
if err.Error() != expectedMsg {
87+
t.Fatalf("Expected error message %q, got %q", expectedMsg, err.Error())
88+
}
89+
90+
// Invalid: Cedar + no slug_id
91+
err = validateArtifactForGeneration("cedar", false, false)
92+
if err == nil {
93+
t.Fatal("Cedar without slug_id should be invalid")
94+
}
95+
expectedMsg = "cedar generation apps require slug_id"
96+
if err.Error() != expectedMsg {
97+
t.Fatalf("Expected error message %q, got %q", expectedMsg, err.Error())
98+
}
99+
})
100+
101+
// Test Fir generation
102+
t.Run("Fir generation", func(t *testing.T) {
103+
// Valid: Fir + oci_image
104+
err := validateArtifactForGeneration("fir", false, true)
105+
if err != nil {
106+
t.Fatalf("Fir + oci_image should be valid: %v", err)
107+
}
108+
109+
// Invalid: Fir + slug_id
110+
err = validateArtifactForGeneration("fir", true, false)
111+
if err == nil {
112+
t.Fatal("Fir + slug_id should be invalid")
113+
}
114+
expectedMsg := "fir generation apps must use oci_image, not slug_id"
115+
if err.Error() != expectedMsg {
116+
t.Fatalf("Expected error message %q, got %q", expectedMsg, err.Error())
117+
}
118+
119+
// Invalid: Fir + no oci_image
120+
err = validateArtifactForGeneration("fir", false, false)
121+
if err == nil {
122+
t.Fatal("Fir without oci_image should be invalid")
123+
}
124+
expectedMsg = "fir generation apps require oci_image"
125+
if err.Error() != expectedMsg {
126+
t.Fatalf("Expected error message %q, got %q", expectedMsg, err.Error())
127+
}
128+
})
129+
130+
// Test unknown generation (should pass through)
131+
t.Run("Unknown generation", func(t *testing.T) {
132+
err := validateArtifactForGeneration("unknown", true, false)
133+
if err != nil {
134+
t.Fatalf("Unknown generation should pass through: %v", err)
135+
}
136+
137+
err = validateArtifactForGeneration("unknown", false, true)
138+
if err != nil {
139+
t.Fatalf("Unknown generation should pass through: %v", err)
140+
}
141+
})
142+
}

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