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package hooks_test
import (
"bytes"
"io/ioutil"
"os"
"python/hooks"
"github.com/cloudfoundry/libbuildpack"
"github.com/cloudfoundry/libbuildpack/ansicleaner"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
"path/filepath"
)
func createFile(dir, filename, command string, perm os.FileMode) error {
procFile := filepath.Join(dir, filename)
f, err := os.OpenFile(procFile, os.O_CREATE|os.O_WRONLY, perm)
if err != nil {
return err
}
defer f.Close()
if _, err = f.WriteString(command); err != nil {
return err
}
return nil
}
var _ = Describe("Appdynamics", func() {
var (
err error
buildDir string
depsDir string
stager *libbuildpack.Stager
buffer *bytes.Buffer
appdynamics hooks.AppdynamicsHook
)
BeforeEach(func() {
buildDir, err = ioutil.TempDir("", "python-buildpack.build.")
Expect(err).To(BeNil())
depsDir, err = ioutil.TempDir("", "python-buildpack.deps.")
Expect(err).To(BeNil())
buffer = new(bytes.Buffer)
logger := libbuildpack.NewLogger(ansicleaner.New(buffer))
args := []string{buildDir, "", depsDir, "9"}
stager = libbuildpack.NewStager(args, logger, &libbuildpack.Manifest{})
command := &libbuildpack.Command{}
appdynamics = hooks.AppdynamicsHook{
Log: logger,
Command: command,
}
})
AfterEach(func() {
Expect(os.RemoveAll(buildDir)).To(Succeed())
})
Describe("GenerateStartUpCommand", func() {
It("Startup command correct format", func() {
startCommand := "web: python flask.py"
ModifiedCommand, err := appdynamics.GenerateStartUpCommand(startCommand)
Expect(ModifiedCommand).To(Equal("web: pyagent run -- python flask.py"))
Expect(err).To(BeNil())
})
It("Wrong format", func() {
startCommand := "python flask.py"
_, err := appdynamics.GenerateStartUpCommand(startCommand)
Expect(err).ToNot(BeNil())
})
})
Describe("RewriteProcFile", func() {
var (
err error
tempProcDir string
)
BeforeEach(func() {
tempProcDir, err = ioutil.TempDir("", "Procfiles")
err = createFile(tempProcDir, "Procfile", "web: python app.py", 0644)
Expect(err).To(BeNil())
err = createFile(tempProcDir, "NoPermProcFile", "web: python app.py", 0444)
Expect(err).To(BeNil())
err = createFile(tempProcDir, "WrongFormatProcFile", "python app.py", 0644)
Expect(err).To(BeNil())
})
AfterEach(func() {
Expect(os.RemoveAll(tempProcDir)).To(Succeed())
})
It("Procfile doesn't exist", func() {
err := appdynamics.RewriteProcFile("/doesnt/exist")
Expect(err).ToNot(BeNil())
})
It("Procfile with no write permissions", func() {
err := appdynamics.RewriteProcFile(filepath.Join(tempProcDir, "NoPermProcFile"))
Expect(err).ToNot(BeNil())
})
It("Procfile with no wrong format", func() {
err := appdynamics.RewriteProcFile(filepath.Join(tempProcDir, "WrongFormatProcFile"))
Expect(err).ToNot(BeNil())
})
It("procfile will be rewritten with pyagent", func() {
err := appdynamics.RewriteProcFile(filepath.Join(tempProcDir, "Procfile"))
Expect(err).To(BeNil())
startCommand, err := ioutil.ReadFile(filepath.Join(tempProcDir, "Procfile"))
Expect(err).To(BeNil())
Expect(string(startCommand)).To(Equal("web: pyagent run -- python app.py"))
})
})
Describe("RewriteRequirementsFile when requirements.txt is not packaged", func() {
It("requirements.txt doesn't exist", func() {
Expect(libbuildpack.FileExists(filepath.Join(buildDir, "requirements.txt"))).ToNot(BeTrue())
err := appdynamics.RewriteRequirementsFile(stager)
Expect(err).To(BeNil())
Expect(libbuildpack.FileExists(filepath.Join(buildDir, "requirements.txt"))).To(BeTrue())
packagesList, err := ioutil.ReadFile(filepath.Join(buildDir, "requirements.txt"))
Expect(err).To(BeNil())
Expect(string(packagesList)).To(Equal("appdynamics"))
})
})
Describe("RewriteRequirementsFile when requirements.txt is packaged", func() {
BeforeEach(func() {
Expect(libbuildpack.FileExists(filepath.Join(buildDir, "requirements.txt"))).ToNot(BeTrue())
procFile := filepath.Join(buildDir, "requirements.txt")
f, err := os.OpenFile(procFile, os.O_CREATE|os.O_WRONLY, 0644)
Expect(err).To(BeNil())
defer f.Close()
_, err = f.WriteString("Flask")
Expect(err).To(BeNil())
})
AfterEach(func() {
Expect(os.Remove(filepath.Join(buildDir, "requirements.txt"))).To(Succeed())
})
It("requirements.txt doesn't exist", func() {
Expect(libbuildpack.FileExists(filepath.Join(buildDir, "requirements.txt"))).To(BeTrue())
err := appdynamics.RewriteRequirementsFile(stager)
Expect(err).To(BeNil())
packages, err := ioutil.ReadFile(filepath.Join(buildDir, "requirements.txt"))
Expect(string(packages)).To(Equal("Flask\nappdynamics"))
})
})
Describe("GenerateScript", func() {
It("Generate script from Env map", func() {
envVal := map[string]string{
"APPD_KEY_1": "APPD_VAL_1",
"APPD_KEY_2": "APPD_VAL_2",
}
script := appdynamics.GenerateAppdynamicsScript(envVal)
expectedScript := `# Autogenerated Appdynamics Script
export APPD_KEY_1=APPD_VAL_1
export APPD_KEY_2=APPD_VAL_2`
Expect(script).To(Equal(expectedScript))
})
})
Describe("CreateAppDynamicsEnv", func() {
It("Generate script from Env map", func() {
envVal := map[string]string{
"APPD_KEY_1": "APPD_VAL_1",
"APPD_KEY_2": "APPD_VAL_2",
}
appdynamics.CreateAppDynamicsEnv(stager, envVal)
appdynamicsShellScript := filepath.Join(stager.DepDir(), "profile.d", "appdynamics.sh")
Expect(libbuildpack.FileExists(appdynamicsShellScript)).To(BeTrue())
expectedScript := `# Autogenerated Appdynamics Script
export APPD_KEY_1=APPD_VAL_1
export APPD_KEY_2=APPD_VAL_2`
script, err := ioutil.ReadFile(appdynamicsShellScript)
Expect(err).To(BeNil())
Expect(string(script)).To(Equal(expectedScript))
})
})
Describe("BeforeCompile when VCAP_SERVICES is not present", func() {
BeforeEach(func() {
Expect(os.Getenv("VCAP_SERVICES")).To(Equal(""))
err = createFile(buildDir, "Procfile", "web: python app.py", 0644)
Expect(err).To(BeNil())
})
AfterEach(func() {
Expect(os.Remove(filepath.Join(buildDir, "Procfile"))).To(Succeed())
})
It("VCAP_SERVICES is not present", func() {
err := appdynamics.BeforeCompile(stager)
Expect(err).To(BeNil())
Expect(libbuildpack.FileExists(filepath.Join(stager.DepDir(), "profile.d", "appdynamics.sh"))).To(BeFalse())
Expect(libbuildpack.FileExists(filepath.Join(buildDir, "requirements.txt"))).To(BeFalse())
procCommand, err := ioutil.ReadFile(filepath.Join(buildDir, "Procfile"))
Expect(err).To(BeNil())
Expect(string(procCommand)).To(Equal("web: python app.py"))
})
})
Describe("BeforeCompile when VCAP_SERVICES has no appdynamics", func() {
BeforeEach(func() {
Expect(os.Getenv("VCAP_SERVICES")).To(Equal(""))
os.Setenv("VCAP_SERVICES", `{"service": [{"credentials": {"login": "name"}, "name": "443"}]}`)
err = createFile(buildDir, "Procfile", "web: python app.py", 0644)
Expect(err).To(BeNil())
})
AfterEach(func() {
Expect(os.Remove(filepath.Join(buildDir, "Procfile"))).To(Succeed())
os.Unsetenv("VCAP_SERVICES")
})
It("VCAP_SERVICES has no appdynamics", func() {
err := appdynamics.BeforeCompile(stager)
Expect(err).To(BeNil())
Expect(libbuildpack.FileExists(filepath.Join(stager.DepDir(), "profile.d", "appdynamics.sh"))).To(BeFalse())
Expect(libbuildpack.FileExists(filepath.Join(buildDir, "requirements.txt"))).To(BeFalse())
procCommand, err := ioutil.ReadFile(filepath.Join(buildDir, "Procfile"))
Expect(err).To(BeNil())
Expect(string(procCommand)).To(Equal("web: python app.py"))
})
})
Describe("BeforeCompile when VCAP_SERVICES has appdynamics", func() {
BeforeEach(func() {
os.Setenv("VCAP_SERVICES",
`{"appdynamics": [{"instance_name": "plan-instance", "tags": [], "name": "plan", "syslog_drain_url": null, "binding_name": null, "credentials": {"host-name": "controller.test.com", "plan-name": "plan", "guid": "guid", "plan-description": "plan", "ssl-enabled": false, "account-access-key": "key", "account-name": "account-name", "port": "7777"}, "label": "appdynamics"}]}`)
os.Setenv("VCAP_APPLICATION", `{"application_id": "applicationId", "name": "test", "application_name": "test"}`)
os.Setenv("APPD_TIER_NAME", "tier" )
os.Setenv("APPD_NODE_NAME", "node" )
err = createFile(buildDir, "Procfile", "web: python app.py", 0644)
Expect(err).To(BeNil())
})
AfterEach(func() {
Expect(os.Remove(filepath.Join(buildDir, "Procfile"))).To(Succeed())
os.Unsetenv("VCAP_SERVICES")
})
It("VCAP_SERVICES has appdynamics", func() {
err := appdynamics.BeforeCompile(stager)
Expect(err).To(BeNil())
Expect(libbuildpack.FileExists(filepath.Join(stager.DepDir(), "profile.d", "appdynamics.sh"))).To(BeTrue())
appdynamicsInfo, err := ioutil.ReadFile(filepath.Join(stager.DepDir(), "profile.d", "appdynamics.sh"))
expectedInfo := `# Autogenerated Appdynamics Script
export APPD_ACCOUNT_ACCESS_KEY=key
export APPD_ACCOUNT_NAME=account-name
export APPD_APP_NAME=test
export APPD_CONTROLLER_HOST=controller.test.com
export APPD_CONTROLLER_PORT=7777
export APPD_NODE_NAME=node
export APPD_SSL_ENABLED=off
export APPD_TIER_NAME=tier`
Expect(string(appdynamicsInfo)).To(Equal(expectedInfo))
Expect(err).To(BeNil())
Expect(libbuildpack.FileExists(filepath.Join(buildDir, "requirements.txt"))).To(BeTrue())
packages, err := ioutil.ReadFile(filepath.Join(buildDir, "requirements.txt"))
Expect(err).To(BeNil())
Expect(string(packages)).To(Equal("appdynamics"))
procCommand, err := ioutil.ReadFile(filepath.Join(buildDir, "Procfile"))
Expect(err).To(BeNil())
Expect(string(procCommand)).To(Equal("web: pyagent run -- python app.py"))
})
})
})
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