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exercises/13-advanced-jenkinsfile/solution/solution.md

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+# Solution
+
+Create the credentials for the CodeCov token.
+
+![CodeCov Credentials](./images/codecov_token_credentials.png)
+
+You can implement the "Test" stage as follows.
+
+```groovy
+stage('Test') {
+    environment {
+        CODECOV_TOKEN = credentials('CODECOV_TOKEN')
+    }
+    steps {
+        sh 'go test ./... -coverprofile=coverage.txt'
+        sh "curl -s https://codecov.io/bash | bash -s -"
+    }
+}
+```
+
+You can implement the "Code Analysis" stage as follows.
+
+```groovy
+stage('Code Analysis') {
+    steps {
+        sh 'curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | bash -s -- -b $GOPATH/bin v1.17.1'
+        sh 'golangci-lint run'
+    }
+}
+```
+
+Create the credentials for the GitHub token.
+
+![GitHub Credentials](./images/github_token_credentials.png)
+
+You can implement the "Release" stage as follows.
+
+```groovy
+stage('Release') {
+    when {
+        buildingTag()
+    }
+    environment {
+        GITHUB_TOKEN = credentials('GITHUB_TOKEN')
+    }
+    steps {
+        sh 'curl -sL https://git.io/goreleaser | bash'
+    }
+}
+```