diff --git a/lib/manager/api.ts b/lib/manager/api.ts
index 0a1a2c49d2e5f64b95bedc76787b1bc26545ab38..27ddd92efaf2f031dbdb4dbeed78f28da9e2c2f8 100644
--- a/lib/manager/api.ts
+++ b/lib/manager/api.ts
@@ -1,5 +1,6 @@
import * as ansible from './ansible';
import * as ansibleGalaxy from './ansible-galaxy';
+import * as argoCD from './argocd';
import * as azurePipelines from './azure-pipelines';
import * as batect from './batect';
import * as batectWrapper from './batect-wrapper';
@@ -65,6 +66,7 @@ export default api;
api.set('ansible', ansible);
api.set('ansible-galaxy', ansibleGalaxy);
+api.set('argocd', argoCD);
api.set('azure-pipelines', azurePipelines);
api.set('batect', batect);
api.set('batect-wrapper', batectWrapper);
diff --git a/lib/manager/argocd/__fixtures__/malformedApplications.yml b/lib/manager/argocd/__fixtures__/malformedApplications.yml
new file mode 100644
index 0000000000000000000000000000000000000000..574b683230cc89fa208e89f2f21cdd7162cf75ad
--- /dev/null
+++ b/lib/manager/argocd/__fixtures__/malformedApplications.yml
@@ -0,0 +1,11 @@
+---
+# malformed application as the source section is missing
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+spec:
+ target:
+ namespace: testing
+---
+# malformed application as the source section is missing
+apiVersion: argoproj.io/v1alpha1
+kind: Application
diff --git a/lib/manager/argocd/__fixtures__/randomManifest.yml b/lib/manager/argocd/__fixtures__/randomManifest.yml
new file mode 100644
index 0000000000000000000000000000000000000000..007ecd317d2de6d0b429d15008a94991f01934ab
--- /dev/null
+++ b/lib/manager/argocd/__fixtures__/randomManifest.yml
@@ -0,0 +1,21 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+ name: nginx-deployment
+ labels:
+ app: nginx
+spec:
+ replicas: 3
+ selector:
+ matchLabels:
+ app: nginx
+ template:
+ metadata:
+ labels:
+ app: nginx
+ spec:
+ containers:
+ - name: nginx
+ image: nginx:1.14.2
+ ports:
+ - containerPort: 80
diff --git a/lib/manager/argocd/__fixtures__/validApplication.yml b/lib/manager/argocd/__fixtures__/validApplication.yml
new file mode 100644
index 0000000000000000000000000000000000000000..d8146bec1b02f576126a470e670fa0cc52a7c6b3
--- /dev/null
+++ b/lib/manager/argocd/__fixtures__/validApplication.yml
@@ -0,0 +1,36 @@
+---
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+spec:
+ source:
+ chart: kube-state-metrics
+ repoURL: https://prometheus-community.github.io/helm-charts
+ targetRevision: 2.4.1
+---
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+spec:
+ source:
+ chart: traefik
+ helm:
+ values: |
+ traefik:
+ service:
+ spec:
+ loadBalancerIP: 1.2.3.4
+ repoURL: gs://helm-charts-internal
+ targetRevision: 0.0.2
+---
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+spec:
+ source:
+ repoURL: https://git.example.com/foo/bar.git
+ targetRevision: v1.2.0
+---
+# malformed application as the source section is missing
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+spec:
+ target:
+ namespace: testing
diff --git a/lib/manager/argocd/__snapshots__/extract.spec.ts.snap b/lib/manager/argocd/__snapshots__/extract.spec.ts.snap
new file mode 100644
index 0000000000000000000000000000000000000000..c5c2f9abf557f060ec125cdd45465b99f9988161
--- /dev/null
+++ b/lib/manager/argocd/__snapshots__/extract.spec.ts.snap
@@ -0,0 +1,27 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`manager/argocd/extract extractPackageFile() full test 1`] = `
+Array [
+ Object {
+ "currentValue": "2.4.1",
+ "datasource": "helm",
+ "depName": "kube-state-metrics",
+ "registryUrls": Array [
+ "https://prometheus-community.github.io/helm-charts",
+ ],
+ },
+ Object {
+ "currentValue": "0.0.2",
+ "datasource": "helm",
+ "depName": "traefik",
+ "registryUrls": Array [
+ "gs://helm-charts-internal",
+ ],
+ },
+ Object {
+ "currentValue": "v1.2.0",
+ "datasource": "git-tags",
+ "depName": "https://git.example.com/foo/bar.git",
+ },
+]
+`;
diff --git a/lib/manager/argocd/extract.spec.ts b/lib/manager/argocd/extract.spec.ts
new file mode 100644
index 0000000000000000000000000000000000000000..1160b6b95f4b4494f69a6bc6d6c9a65b4cbb80c6
--- /dev/null
+++ b/lib/manager/argocd/extract.spec.ts
@@ -0,0 +1,34 @@
+import { getName, loadFixture } from '../../../test/util';
+import { extractPackageFile } from './extract';
+
+const validApplication = loadFixture('validApplication.yml');
+const malformedApplication = loadFixture('malformedApplications.yml');
+const randomManifest = loadFixture('randomManifest.yml');
+
+describe(getName(), () => {
+ describe('extractPackageFile()', () => {
+ it('returns null for empty', () => {
+ expect(extractPackageFile('nothing here', 'applications.yml')).toBeNull();
+ });
+
+ it('return null for kubernetes manifest', () => {
+ const result = extractPackageFile(randomManifest, 'applications.yml');
+ expect(result).toBeNull();
+ });
+
+ it('return null if deps array would be empty', () => {
+ const result = extractPackageFile(
+ malformedApplication,
+ 'applications.yml'
+ );
+ expect(result).toBeNull();
+ });
+
+ it('full test', () => {
+ const result = extractPackageFile(validApplication, 'applications.yml');
+ expect(result).not.toBeNull();
+ expect(result.deps).toBeArrayOfSize(3);
+ expect(result.deps).toMatchSnapshot();
+ });
+ });
+});
diff --git a/lib/manager/argocd/extract.ts b/lib/manager/argocd/extract.ts
new file mode 100644
index 0000000000000000000000000000000000000000..3ff72772f8ce2a311c730b7e3afcb63dabb7ff0a
--- /dev/null
+++ b/lib/manager/argocd/extract.ts
@@ -0,0 +1,50 @@
+import { safeLoadAll } from 'js-yaml';
+import * as gitTags from '../../datasource/git-tags';
+import * as helm from '../../datasource/helm';
+import type { ExtractConfig, PackageDependency, PackageFile } from '../types';
+import type { ApplicationDefinition } from './types';
+import { fileTestRegex } from './util';
+
+function createDependency(
+ definition: ApplicationDefinition
+): PackageDependency {
+ const source = definition.spec?.source;
+
+ if (source == null) {
+ return null;
+ }
+
+ // a chart variable is defined this is helm declaration
+ if (source.chart) {
+ return {
+ depName: source.chart,
+ registryUrls: [source.repoURL],
+ currentValue: source.targetRevision,
+ datasource: helm.id,
+ };
+ }
+ return {
+ depName: source.repoURL,
+ currentValue: source.targetRevision,
+ datasource: gitTags.id,
+ };
+}
+
+export function extractPackageFile(
+ content: string,
+ fileName: string,
+ config?: ExtractConfig
+): PackageFile | null {
+ // check for argo reference. API version for the kind attribute is used
+ if (fileTestRegex.test(content) === false) {
+ return null;
+ }
+
+ const definitions: ApplicationDefinition[] = safeLoadAll(content);
+
+ const deps = definitions
+ .map((definition) => createDependency(definition))
+ .filter(Boolean);
+
+ return deps.length ? { deps } : null;
+}
diff --git a/lib/manager/argocd/index.ts b/lib/manager/argocd/index.ts
new file mode 100644
index 0000000000000000000000000000000000000000..1012c71468dbc48b337475d9c06e8a2591ee13b4
--- /dev/null
+++ b/lib/manager/argocd/index.ts
@@ -0,0 +1,5 @@
+export { extractPackageFile } from './extract';
+
+export const defaultConfig = {
+ fileMatch: [],
+};
diff --git a/lib/manager/argocd/readme.md b/lib/manager/argocd/readme.md
new file mode 100644
index 0000000000000000000000000000000000000000..4bc8a70e7945c8a01d4e36cdbe6de2ff24bdd2ef
--- /dev/null
+++ b/lib/manager/argocd/readme.md
@@ -0,0 +1,33 @@
+The `argocd` manager has no `fileMatch` default patterns, so it won't match any files until you configure it with a pattern. This is because there is no commonly accepted file/directory naming convention for argocd YAML files and we don't want to check every single `*.yaml` file in repositories just in case any of them contain ArgoCD definitions.
+
+If most `.yaml` files in your repository are argocd ones, then you could add this to your config:
+
+```json
+{
+ "argocd": {
+ "fileMatch": ["\\.yaml$"]
+ }
+}
+```
+
+If instead you have them all inside a `argocd/` directory, you would add this:
+
+```json
+{
+ "argocd": {
+ "fileMatch": ["argocd/.+\\.yaml$"]
+ }
+}
+```
+
+Or if it's just a single file then something like this:
+
+```json
+{
+ "argocd": {
+ "fileMatch": ["^config/applications\\.yaml$"]
+ }
+}
+```
+
+If you need to change the versioning format, read the [versioning](https://docs.renovatebot.com/modules/versioning/) documentation to learn more.
diff --git a/lib/manager/argocd/types.ts b/lib/manager/argocd/types.ts
new file mode 100644
index 0000000000000000000000000000000000000000..8a84291575d077af269f656adb2e4d53f76c9438
--- /dev/null
+++ b/lib/manager/argocd/types.ts
@@ -0,0 +1,9 @@
+export interface ApplicationDefinition {
+ spec: {
+ source: {
+ chart?: string;
+ repoURL: string;
+ targetRevision: string;
+ };
+ };
+}
diff --git a/lib/manager/argocd/util.ts b/lib/manager/argocd/util.ts
new file mode 100644
index 0000000000000000000000000000000000000000..0c0d143482098029012559bbd2a511871d80a993
--- /dev/null
+++ b/lib/manager/argocd/util.ts
@@ -0,0 +1,3 @@
+export const keyValueExtractionRegex = /^\s*(?<key>[^\s]+):\s+"?(?<value>[^"\s]+)"?\s*$/;
+// looks for `apiVersion: argoproj.io/
+export const fileTestRegex = /\s*apiVersion:\s*argoproj.io\/\s*/;