Master continuous integration and deployment automation using Python with Jenkins, GitHub Actions, GitLab CI, and comprehensive pipeline orchestration
CI/CD automation is the backbone of modern DevOps practices, enabling teams to deliver software faster and more reliably. Python provides powerful libraries for orchestrating complex pipelines across multiple platforms.
Why CI/CD Pipeline Automation with Python?
Real-World Use Cases:
This lesson demonstrates patterns used by DevOps engineering teams at companies like Netflix, Spotify, and Airbnb.
Jenkins is the most popular CI/CD server. Python provides multiple libraries for comprehensive Jenkins automation.
Core Jenkins Python Libraries:
1from jenkinsapi.jenkins import Jenkins
2from jenkins import Jenkins as PythonJenkins
3import requests
4from typing import Dict, List, Optional
5import xml.etree.ElementTree as ET
6
7# jenkinsapi - Object-oriented interface
8jenkins = Jenkins('http://jenkins:8080', username='admin', password='token')
9
10# python-jenkins - Lower-level API access
11server = PythonJenkins('http://jenkins:8080', username='admin', password='token')Job Management:
1class JenkinsJobManager:
2 def __init__(self, url: str, username: str, password: str):
3 self.jenkins = Jenkins(url, username=username, password=password)
4 self.server = PythonJenkins(url, username=username, password=password)
5
6 def create_pipeline_job(self, name: str,
7 script: str,
8 parameters: List[Dict] = None) -> bool:
9 """Create Jenkins pipeline job"""
10
11 job_config = f"""<?xml version='1.1' encoding='UTF-8'?>
12<flow-definition plugin="[email protected]">
13 <description>Automated pipeline created via Python</description>
14 <keepDependencies>false</keepDependencies>
15 <properties>
16 <hudson.model.ParametersDefinitionProperty>
17 <parameterDefinitions>
18 {self._generate_parameters_xml(parameters or [])}
19 </parameterDefinitions>
20 </hudson.model.ParametersDefinitionProperty>
21 </properties>
22 <definition class="org.jenkinsci.plugins.workflow.cps.CpsFlowDefinition">
23 <script>{script}</script>
24 <sandbox>true</sandbox>
25 </definition>
26 <triggers/>
27 <disabled>false</disabled>
28</flow-definition>"""
29
30 try:
31 self.server.create_job(name, job_config)
32 return True
33 except Exception as e:
34 print(f"Failed to create job: {e}")
35 return False
36
37 def _generate_parameters_xml(self, parameters: List[Dict]) -> str:
38 """Generate parameter definitions XML"""
39 xml_parts = []
40 for param in parameters:
41 param_type = param.get('type', 'string')
42 if param_type == 'string':
43 xml_parts.append(f"""
44 <hudson.model.StringParameterDefinition>
45 <name>{param['name']}</name>
46 <description>{param.get('description', '')}</description>
47 <defaultValue>{param.get('default', '')}</defaultValue>
48 </hudson.model.StringParameterDefinition>""")
49 elif param_type == 'choice':
50 choices = '\n'.join(param.get('choices', []))
51 xml_parts.append(f"""
52 <hudson.model.ChoiceParameterDefinition>
53 <name>{param['name']}</name>
54 <description>{param.get('description', '')}</description>
55 <choices class="java.util.Arrays$ArrayList">
56 <a class="string-array">
57 <string>{choices}</string>
58 </a>
59 </choices>
60 </hudson.model.ChoiceParameterDefinition>""")
61
62 return '\n'.join(xml_parts)
63
64 def trigger_build(self, job_name: str,
65 parameters: Dict = None,
66 wait: bool = True) -> Optional[int]:
67 """Trigger Jenkins build"""
68 try:
69 job = self.jenkins[job_name]
70
71 if parameters:
72 queue_item = job.invoke(build_params=parameters)
73 else:
74 queue_item = job.invoke()
75
76 if wait:
77 queue_item.block_until_complete()
78 build = queue_item.get_build()
79 return build.get_number()
80
81 return None
82
83 except Exception as e:
84 print(f"Failed to trigger build: {e}")
85 return None
86
87 def get_build_status(self, job_name: str, build_number: int) -> Dict:
88 """Get build status and details"""
89 try:
90 job = self.jenkins[job_name]
91 build = job.get_build(build_number)
92
93 return {
94 'number': build.get_number(),
95 'status': build.get_status(),
96 'building': build.is_running(),
97 'result': build.get_result(),
98 'duration': build.get_duration().total_seconds(),
99 'timestamp': build.get_timestamp(),
100 'url': build.baseurl,
101 'console_output': build.get_console()
102 }
103
104 except Exception as e:
105 print(f"Failed to get build status: {e}")
106 return {}
107
108 def get_build_artifacts(self, job_name: str,
109 build_number: int) -> List[str]:
110 """Get build artifacts"""
111 try:
112 job = self.jenkins[job_name]
113 build = job.get_build(build_number)
114
115 artifacts = []
116 for artifact in build.get_artifact_dict():
117 artifacts.append({
118 'filename': artifact['fileName'],
119 'relativePath': artifact['relativePath'],
120 'url': f"{build.baseurl}artifact/{artifact['relativePath']}"
121 })
122
123 return artifacts
124
125 except Exception as e:
126 print(f"Failed to get artifacts: {e}")
127 return []
128
129 def get_pipeline_stages(self, job_name: str,
130 build_number: int) -> List[Dict]:
131 """Get pipeline stage information"""
132 try:
133 # Use workflow API to get stage details
134 url = f"{self.jenkins.baseurl}/job/{job_name}/{build_number}/wfapi/describe"
135 response = requests.get(url, auth=(self.jenkins.username,
136 self.jenkins.password))
137
138 if response.status_code == 200:
139 data = response.json()
140 stages = []
141
142 for stage in data.get('stages', []):
143 stages.append({
144 'name': stage['name'],
145 'status': stage['status'],
146 'duration': stage['durationMillis'],
147 'start_time': stage['startTimeMillis']
148 })
149
150 return stages
151
152 return []
153
154 except Exception as e:
155 print(f"Failed to get pipeline stages: {e}")
156 return []Build Queue Management:
1def manage_build_queue(jenkins: Jenkins) -> Dict:
2 """Monitor and manage Jenkins build queue"""
3 queue = jenkins.get_queue()
4
5 queue_info = {
6 'length': len(queue),
7 'items': []
8 }
9
10 for item in queue.get_queue_items():
11 queue_info['items'].append({
12 'id': item.id,
13 'task_name': item.get_job_name(),
14 'why': item.why,
15 'blocked': item.blocked,
16 'stuck': item.stuck,
17 'in_queue_since': item.get_time_in_queue()
18 })
19
20 return queue_info
21
22def cancel_queued_builds(jenkins: Jenkins, job_name: str):
23 """Cancel all queued builds for a job"""
24 queue = jenkins.get_queue()
25
26 for item in queue.get_queue_items():
27 if item.get_job_name() == job_name:
28 item.cancel()
29 print(f"Cancelled queued build: {item.id}")Node Management:
1def get_node_status(jenkins: Jenkins) -> Dict:
2 """Get Jenkins node/executor status"""
3 nodes_info = {
4 'total_nodes': 0,
5 'online_nodes': 0,
6 'offline_nodes': 0,
7 'nodes': []
8 }
9
10 nodes = jenkins.get_nodes()
11 nodes_info['total_nodes'] = len(nodes)
12
13 for node_name, node in nodes.items():
14 is_online = node.is_online()
15
16 node_data = {
17 'name': node_name,
18 'online': is_online,
19 'executors': node.get_num_executors(),
20 'labels': list(node.get_labels()),
21 'architecture': node.get_architecture()
22 }
23
24 nodes_info['nodes'].append(node_data)
25
26 if is_online:
27 nodes_info['online_nodes'] += 1
28 else:
29 nodes_info['offline_nodes'] += 1
30
31 return nodes_infoThis comprehensive Jenkins automation enables full lifecycle management of CI/CD pipelines programmatically.
GitHub Actions has become one of the most popular CI/CD platforms. PyGithub enables comprehensive automation of GitHub workflows and repository management.
GitHub Actions Workflow Management:
1from github import Github, GithubException
2from github.Repository import Repository
3from github.Workflow import Workflow
4from github.WorkflowRun import WorkflowRun
5import yaml
6from typing import Dict, List, Optional
7from datetime import datetime, timedelta
8
9class GitHubActionsManager:
10 def __init__(self, token: str):
11 self.github = Github(token)
12 self.user = self.github.get_user()
13
14 def create_workflow_file(self, repo_name: str,
15 workflow_name: str,
16 workflow_content: Dict) -> bool:
17 """Create GitHub Actions workflow file"""
18 try:
19 repo = self.github.get_repo(repo_name)
20
21 # Convert workflow dict to YAML
22 workflow_yaml = yaml.dump(workflow_content,
23 default_flow_style=False)
24
25 # Create workflow file
26 file_path = f".github/workflows/{workflow_name}.yml"
27
28 try:
29 # Check if file exists
30 contents = repo.get_contents(file_path)
31 # Update existing file
32 repo.update_file(
33 path=file_path,
34 message=f"Update {workflow_name} workflow",
35 content=workflow_yaml,
36 sha=contents.sha
37 )
38 except GithubException:
39 # Create new file
40 repo.create_file(
41 path=file_path,
42 message=f"Add {workflow_name} workflow",
43 content=workflow_yaml
44 )
45
46 return True
47
48 except Exception as e:
49 print(f"Failed to create workflow: {e}")
50 return False
51
52 def trigger_workflow(self, repo_name: str,
53 workflow_id: str,
54 ref: str = 'main',
55 inputs: Dict = None) -> bool:
56 """Trigger GitHub Actions workflow"""
57 try:
58 repo = self.github.get_repo(repo_name)
59 workflow = repo.get_workflow(workflow_id)
60
61 if inputs:
62 success = workflow.create_dispatch(ref=ref, inputs=inputs)
63 else:
64 success = workflow.create_dispatch(ref=ref)
65
66 return success
67
68 except Exception as e:
69 print(f"Failed to trigger workflow: {e}")
70 return False
71
72 def get_workflow_runs(self, repo_name: str,
73 workflow_id: str,
74 limit: int = 10) -> List[Dict]:
75 """Get recent workflow runs"""
76 try:
77 repo = self.github.get_repo(repo_name)
78 workflow = repo.get_workflow(workflow_id)
79
80 runs = []
81 for run in workflow.get_runs()[:limit]:
82 runs.append({
83 'id': run.id,
84 'name': run.name,
85 'status': run.status,
86 'conclusion': run.conclusion,
87 'branch': run.head_branch,
88 'commit_sha': run.head_sha[:7],
89 'created_at': run.created_at,
90 'updated_at': run.updated_at,
91 'duration': self._calculate_duration(run),
92 'url': run.html_url
93 })
94
95 return runs
96
97 except Exception as e:
98 print(f"Failed to get workflow runs: {e}")
99 return []
100
101 def _calculate_duration(self, run: WorkflowRun) -> Optional[int]:
102 """Calculate workflow run duration in seconds"""
103 if run.status == 'completed' and run.created_at and run.updated_at:
104 duration = (run.updated_at - run.created_at).total_seconds()
105 return int(duration)
106 return None
107
108 def get_workflow_run_jobs(self, repo_name: str,
109 run_id: int) -> List[Dict]:
110 """Get jobs for a workflow run"""
111 try:
112 repo = self.github.get_repo(repo_name)
113 run = repo.get_workflow_run(run_id)
114
115 jobs = []
116 for job in run.jobs():
117 jobs.append({
118 'id': job.id,
119 'name': job.name,
120 'status': job.status,
121 'conclusion': job.conclusion,
122 'started_at': job.started_at,
123 'completed_at': job.completed_at,
124 'steps': [
125 {
126 'name': step.name,
127 'status': step.status,
128 'conclusion': step.conclusion,
129 'number': step.number
130 }
131 for step in job.steps
132 ]
133 })
134
135 return jobs
136
137 except Exception as e:
138 print(f"Failed to get workflow jobs: {e}")
139 return []
140
141 def cancel_workflow_run(self, repo_name: str, run_id: int) -> bool:
142 """Cancel a workflow run"""
143 try:
144 repo = self.github.get_repo(repo_name)
145 run = repo.get_workflow_run(run_id)
146
147 if run.status != 'completed':
148 run.cancel()
149 return True
150
151 return False
152
153 except Exception as e:
154 print(f"Failed to cancel workflow: {e}")
155 return False
156
157 def get_workflow_metrics(self, repo_name: str,
158 workflow_id: str,
159 days: int = 30) -> Dict:
160 """Calculate workflow metrics"""
161 try:
162 repo = self.github.get_repo(repo_name)
163 workflow = repo.get_workflow(workflow_id)
164
165 since = datetime.now() - timedelta(days=days)
166 runs = [r for r in workflow.get_runs()
167 if r.created_at > since]
168
169 total_runs = len(runs)
170 successful_runs = len([r for r in runs
171 if r.conclusion == 'success'])
172 failed_runs = len([r for r in runs
173 if r.conclusion == 'failure'])
174
175 durations = [
176 (r.updated_at - r.created_at).total_seconds()
177 for r in runs
178 if r.status == 'completed' and r.created_at and r.updated_at
179 ]
180
181 metrics = {
182 'total_runs': total_runs,
183 'successful_runs': successful_runs,
184 'failed_runs': failed_runs,
185 'success_rate': (successful_runs / total_runs * 100)
186 if total_runs > 0 else 0,
187 'avg_duration': sum(durations) / len(durations)
188 if durations else 0,
189 'min_duration': min(durations) if durations else 0,
190 'max_duration': max(durations) if durations else 0
191 }
192
193 return metrics
194
195 except Exception as e:
196 print(f"Failed to calculate metrics: {e}")
197 return {}Repository Automation:
1def setup_repository_automation(github: Github,
2 repo_name: str) -> bool:
3 """Setup comprehensive repository automation"""
4 try:
5 repo = github.get_repo(repo_name)
6
7 # Enable branch protection
8 branch = repo.get_branch('main')
9 branch.edit_protection(
10 required_approving_review_count=2,
11 dismiss_stale_reviews=True,
12 require_code_owner_reviews=True,
13 required_status_checks={
14 'strict': True,
15 'contexts': ['ci/build', 'ci/test']
16 },
17 enforce_admins=True
18 )
19
20 # Setup environment secrets (requires appropriate permissions)
21 # Note: Actual secret values should come from secure sources
22
23 # Create issue labels
24 labels = [
25 {'name': 'bug', 'color': 'ee0701'},
26 {'name': 'enhancement', 'color': '0052cc'},
27 {'name': 'documentation', 'color': '5319e7'}
28 ]
29
30 for label in labels:
31 try:
32 repo.create_label(**label)
33 except GithubException:
34 pass # Label already exists
35
36 return True
37
38 except Exception as e:
39 print(f"Failed to setup automation: {e}")
40 return FalsePull Request Automation:
1def automate_pr_checks(repo: Repository, pr_number: int) -> Dict:
2 """Perform automated PR checks"""
3 pr = repo.get_pull(pr_number)
4
5 checks = {
6 'has_description': len(pr.body or '') > 50,
7 'has_reviewers': pr.requested_reviewers.totalCount > 0,
8 'has_labels': pr.labels.totalCount > 0,
9 'files_changed': pr.changed_files,
10 'additions': pr.additions,
11 'deletions': pr.deletions,
12 'mergeable': pr.mergeable,
13 'ci_passing': all(
14 status.state == 'success'
15 for status in pr.get_commits()[pr.commits - 1].get_statuses()
16 )
17 }
18
19 # Auto-add labels based on changes
20 if checks['files_changed'] > 100:
21 pr.add_to_labels('large-pr')
22
23 if checks['additions'] > checks['deletions'] * 3:
24 pr.add_to_labels('significant-change')
25
26 return checksThis GitHub Actions automation enables complete CI/CD workflow management programmatically.
Modern organizations often use multiple CI/CD platforms. Python enables unified orchestration across all platforms with intelligent routing and fallback mechanisms.
Universal Pipeline Orchestrator:
1from abc import ABC, abstractmethod
2from enum import Enum
3from typing import Dict, List, Optional, Any
4from dataclasses import dataclass
5import time
6
7class PipelineStatus(Enum):
8 """Pipeline execution status"""
9 PENDING = "pending"
10 RUNNING = "running"
11 SUCCESS = "success"
12 FAILURE = "failure"
13 CANCELLED = "cancelled"
14
15
16@dataclass
17class PipelineResult:
18 """Pipeline execution result"""
19 pipeline_id: str
20 platform: str
21 status: PipelineStatus
22 duration: float
23 build_number: Optional[int] = None
24 url: Optional[str] = None
25 artifacts: List[str] = None
26 error: Optional[str] = None
27
28
29class CIPlatform(ABC):
30 """Abstract base class for CI platforms"""
31
32 @abstractmethod
33 def trigger_pipeline(self, config: Dict) -> str:
34 """Trigger pipeline execution"""
35 pass
36
37 @abstractmethod
38 def get_pipeline_status(self, pipeline_id: str) -> PipelineStatus:
39 """Get pipeline status"""
40 pass
41
42 @abstractmethod
43 def get_pipeline_result(self, pipeline_id: str) -> PipelineResult:
44 """Get pipeline execution result"""
45 pass
46
47 @abstractmethod
48 def cancel_pipeline(self, pipeline_id: str) -> bool:
49 """Cancel running pipeline"""
50 pass
51
52
53class JenkinsPlatform(CIPlatform):
54 """Jenkins CI platform implementation"""
55
56 def __init__(self, jenkins_manager: 'JenkinsJobManager'):
57 self.jenkins = jenkins_manager
58
59 def trigger_pipeline(self, config: Dict) -> str:
60 """Trigger Jenkins pipeline"""
61 job_name = config['job_name']
62 parameters = config.get('parameters', {})
63
64 build_number = self.jenkins.trigger_build(
65 job_name,
66 parameters,
67 wait=False
68 )
69
70 return f"{job_name}:{build_number}"
71
72 def get_pipeline_status(self, pipeline_id: str) -> PipelineStatus:
73 """Get Jenkins pipeline status"""
74 job_name, build_number = pipeline_id.split(':')
75 status = self.jenkins.get_build_status(job_name, int(build_number))
76
77 if status['building']:
78 return PipelineStatus.RUNNING
79 elif status['result'] == 'SUCCESS':
80 return PipelineStatus.SUCCESS
81 elif status['result'] == 'FAILURE':
82 return PipelineStatus.FAILURE
83 else:
84 return PipelineStatus.PENDING
85
86 def get_pipeline_result(self, pipeline_id: str) -> PipelineResult:
87 """Get Jenkins pipeline result"""
88 job_name, build_number = pipeline_id.split(':')
89 status = self.jenkins.get_build_status(job_name, int(build_number))
90 artifacts = self.jenkins.get_build_artifacts(job_name, int(build_number))
91
92 return PipelineResult(
93 pipeline_id=pipeline_id,
94 platform='jenkins',
95 status=self.get_pipeline_status(pipeline_id),
96 duration=status.get('duration', 0),
97 build_number=int(build_number),
98 url=status.get('url'),
99 artifacts=[a['url'] for a in artifacts]
100 )
101
102 def cancel_pipeline(self, pipeline_id: str) -> bool:
103 """Cancel Jenkins pipeline"""
104 job_name, build_number = pipeline_id.split(':')
105 # Implementation depends on Jenkins API capabilities
106 return True
107
108
109class GitHubActionsPlatform(CIPlatform):
110 """GitHub Actions platform implementation"""
111
112 def __init__(self, github_manager: 'GitHubActionsManager'):
113 self.github = github_manager
114
115 def trigger_pipeline(self, config: Dict) -> str:
116 """Trigger GitHub Actions workflow"""
117 repo_name = config['repo_name']
118 workflow_id = config['workflow_id']
119 inputs = config.get('inputs', {})
120 ref = config.get('ref', 'main')
121
122 success = self.github.trigger_workflow(
123 repo_name,
124 workflow_id,
125 ref,
126 inputs
127 )
128
129 if success:
130 # Get the latest run ID
131 runs = self.github.get_workflow_runs(repo_name, workflow_id, limit=1)
132 if runs:
133 return f"{repo_name}:{runs[0]['id']}"
134
135 raise Exception("Failed to trigger workflow")
136
137 def get_pipeline_status(self, pipeline_id: str) -> PipelineStatus:
138 """Get GitHub Actions status"""
139 repo_name, run_id = pipeline_id.rsplit(':', 1)
140 # Fetch run status from GitHub API
141 # Implementation would use github_manager methods
142 return PipelineStatus.RUNNING # Placeholder
143
144 def get_pipeline_result(self, pipeline_id: str) -> PipelineResult:
145 """Get GitHub Actions result"""
146 repo_name, run_id = pipeline_id.rsplit(':', 1)
147 # Fetch complete result
148 return PipelineResult(
149 pipeline_id=pipeline_id,
150 platform='github-actions',
151 status=PipelineStatus.SUCCESS,
152 duration=0
153 )
154
155 def cancel_pipeline(self, pipeline_id: str) -> bool:
156 """Cancel GitHub Actions workflow"""
157 repo_name, run_id = pipeline_id.rsplit(':', 1)
158 return self.github.cancel_workflow_run(repo_name, int(run_id))
159
160
161class PipelineOrchestrator:
162 """Unified pipeline orchestrator across platforms"""
163
164 def __init__(self):
165 self.platforms: Dict[str, CIPlatform] = {}
166 self.active_pipelines: Dict[str, PipelineResult] = {}
167
168 def register_platform(self, name: str, platform: CIPlatform):
169 """Register CI platform"""
170 self.platforms[name] = platform
171
172 def execute_pipeline(self, platform: str, config: Dict,
173 wait: bool = True) -> PipelineResult:
174 """Execute pipeline on specified platform"""
175 if platform not in self.platforms:
176 raise ValueError(f"Unknown platform: {platform}")
177
178 ci_platform = self.platforms[platform]
179
180 # Trigger pipeline
181 pipeline_id = ci_platform.trigger_pipeline(config)
182
183 # Track active pipeline
184 result = PipelineResult(
185 pipeline_id=pipeline_id,
186 platform=platform,
187 status=PipelineStatus.PENDING,
188 duration=0
189 )
190 self.active_pipelines[pipeline_id] = result
191
192 # Wait for completion if requested
193 if wait:
194 result = self._wait_for_completion(
195 platform,
196 pipeline_id,
197 timeout=3600
198 )
199
200 return result
201
202 def _wait_for_completion(self, platform: str,
203 pipeline_id: str,
204 timeout: int = 3600) -> PipelineResult:
205 """Wait for pipeline completion"""
206 ci_platform = self.platforms[platform]
207 start_time = time.time()
208
209 while time.time() - start_time < timeout:
210 status = ci_platform.get_pipeline_status(pipeline_id)
211
212 if status in [PipelineStatus.SUCCESS,
213 PipelineStatus.FAILURE,
214 PipelineStatus.CANCELLED]:
215 return ci_platform.get_pipeline_result(pipeline_id)
216
217 time.sleep(10)
218
219 raise TimeoutError(f"Pipeline {pipeline_id} timeout after {timeout}s")
220
221 def execute_multi_platform(self, configs: List[Dict]) -> List[PipelineResult]:
222 """Execute pipelines across multiple platforms"""
223 results = []
224
225 for config in configs:
226 platform = config.pop('platform')
227 result = self.execute_pipeline(platform, config, wait=False)
228 results.append(result)
229
230 # Wait for all to complete
231 final_results = []
232 for result in results:
233 final_result = self._wait_for_completion(
234 result.platform,
235 result.pipeline_id
236 )
237 final_results.append(final_result)
238
239 return final_resultsDeployment Pipeline with Approval Gates:
1class DeploymentPipeline:
2 """Advanced deployment pipeline with gates"""
3
4 def __init__(self, orchestrator: PipelineOrchestrator):
5 self.orchestrator = orchestrator
6 self.deployment_history = []
7
8 def deploy_with_gates(self, environment: str,
9 version: str) -> PipelineResult:
10 """Deploy with automated quality gates"""
11
12 # Stage 1: Build and test
13 build_result = self.orchestrator.execute_pipeline('jenkins', {
14 'job_name': f'build-{environment}',
15 'parameters': {'VERSION': version}
16 })
17
18 if build_result.status != PipelineStatus.SUCCESS:
19 raise Exception("Build failed")
20
21 # Stage 2: Integration tests
22 test_result = self.orchestrator.execute_pipeline('github-actions', {
23 'repo_name': 'org/app',
24 'workflow_id': 'integration-tests.yml',
25 'inputs': {'version': version}
26 })
27
28 if test_result.status != PipelineStatus.SUCCESS:
29 raise Exception("Integration tests failed")
30
31 # Stage 3: Deploy to staging
32 staging_result = self._deploy_to_environment('staging', version)
33
34 # Stage 4: Smoke tests
35 smoke_passed = self._run_smoke_tests('staging')
36
37 if not smoke_passed:
38 # Rollback staging
39 self._rollback_environment('staging')
40 raise Exception("Smoke tests failed")
41
42 # Stage 5: Manual approval for production
43 if environment == 'production':
44 approved = self._wait_for_approval(version)
45 if not approved:
46 raise Exception("Deployment not approved")
47
48 # Stage 6: Deploy to production
49 prod_result = self._deploy_to_environment('production', version)
50
51 # Record deployment
52 self.deployment_history.append({
53 'environment': environment,
54 'version': version,
55 'timestamp': time.time(),
56 'result': prod_result
57 })
58
59 return prod_result
60
61 def _deploy_to_environment(self, env: str, version: str) -> PipelineResult:
62 """Deploy to specific environment"""
63 # Trigger deployment pipeline
64 return self.orchestrator.execute_pipeline('jenkins', {
65 'job_name': f'deploy-{env}',
66 'parameters': {
67 'VERSION': version,
68 'ENVIRONMENT': env
69 }
70 })
71
72 def _run_smoke_tests(self, env: str) -> bool:
73 """Run smoke tests"""
74 # Trigger smoke test suite
75 result = self.orchestrator.execute_pipeline('github-actions', {
76 'repo_name': 'org/tests',
77 'workflow_id': 'smoke-tests.yml',
78 'inputs': {'environment': env}
79 })
80 return result.status == PipelineStatus.SUCCESS
81
82 def _wait_for_approval(self, version: str, timeout: int = 86400) -> bool:
83 """Wait for manual approval"""
84 # In production, this would integrate with approval systems
85 # like Slack, PagerDuty, or custom approval workflows
86 print(f"Waiting for approval for version {version}")
87 # Placeholder - would check approval status
88 return True
89
90 def _rollback_environment(self, env: str):
91 """Rollback to previous version"""
92 if not self.deployment_history:
93 raise Exception("No previous deployment to rollback to")
94
95 # Get previous successful deployment
96 previous = self.deployment_history[-2] if len(self.deployment_history) > 1 else None
97
98 if previous:
99 self._deploy_to_environment(env, previous['version'])This orchestration framework enables sophisticated multi-platform CI/CD workflows with quality gates, approvals, and automated rollback capabilities.
Build a comprehensive CI/CD automation platform that orchestrates Jenkins and GitHub Actions pipelines, implements deployment gates, manages artifacts, and provides unified monitoring and metrics across all CI/CD activities.
1#!/usr/bin/env python3
2"""
3š Production CI/CD Automation Platform
4Topic: Jenkins + GitHub Actions orchestration with deployment automation
5Author: DevOps Automation Team
6Dependencies: pip install jenkinsapi python-jenkins PyGithub pyyaml requests
7"""
8
9from jenkinsapi.jenkins import Jenkins as JenkinsAPI
10from jenkins import Jenkins as PythonJenkins
11from github import Github, GithubException
12import yaml
13import time
14import logging
15import sys
16from datetime import datetime, timedelta
17from typing import Dict, List, Optional, Any
18from dataclasses import dataclass
19from enum import Enum
20
21# Configure logging
22logging.basicConfig(
23 level=logging.INFO,
24 format='%(asctime)s - %(levelname)s - %(message)s',
25 handlers=[
26 logging.FileHandler('cicd-automation.log'),
27 logging.StreamHandler(sys.stdout)
28 ]
29)
30logger = logging.getLogger(__name__)
31
32
33class PipelineStatus(Enum):
34 """Pipeline execution status"""
35 PENDING = "pending"
36 RUNNING = "running"
37 SUCCESS = "success"
38 FAILURE = "failure"
39 CANCELLED = "cancelled"
40
41
42@dataclass
43class BuildResult:
44 """Build execution result"""
45 pipeline_id: str
46 platform: str
47 status: PipelineStatus
48 duration: float
49 build_number: Optional[int] = None
50 url: Optional[str] = None
51 commit_sha: Optional[str] = None
52
53
54class JenkinsManager:
55 """
56 Comprehensive Jenkins automation
57 """
58
59 def __init__(self, url: str, username: str, password: str):
60 """
61 Initialize Jenkins connection
62
63 Args:
64 url: Jenkins server URL
65 username: Jenkins username
66 password: Jenkins API token
67 """
68 try:
69 self.jenkins = JenkinsAPI(url, username=username, password=password)
70 self.server = PythonJenkins(url, username=username, password=password)
71 self.url = url
72 logger.info(f"ā Connected to Jenkins: {url}")
73
74 except Exception as e:
75 logger.error(f"Failed to connect to Jenkins: {e}")
76 raise
77
78 def trigger_build(self, job_name: str,
79 parameters: Dict = None,
80 wait: bool = True) -> BuildResult:
81 """
82 Trigger Jenkins build
83
84 Args:
85 job_name: Jenkins job name
86 parameters: Build parameters
87 wait: Wait for build completion
88
89 Returns:
90 Build result
91 """
92 try:
93 logger.info(f"š Triggering Jenkins build: {job_name}")
94
95 job = self.jenkins[job_name]
96 start_time = time.time()
97
98 if parameters:
99 queue_item = job.invoke(build_params=parameters)
100 else:
101 queue_item = job.invoke()
102
103 build_number = None
104 if wait:
105 logger.info("ā³ Waiting for build to complete...")
106 queue_item.block_until_complete()
107 build = queue_item.get_build()
108 build_number = build.get_number()
109
110 duration = time.time() - start_time
111
112 result = BuildResult(
113 pipeline_id=f"{job_name}:{build_number}",
114 platform='jenkins',
115 status=PipelineStatus.SUCCESS if build.get_status() == 'SUCCESS'
116 else PipelineStatus.FAILURE,
117 duration=duration,
118 build_number=build_number,
119 url=build.baseurl
120 )
121
122 logger.info(f"ā Build completed: {result.status.value} in {duration:.2f}s")
123 return result
124
125 return BuildResult(
126 pipeline_id=f"{job_name}:pending",
127 platform='jenkins',
128 status=PipelineStatus.PENDING,
129 duration=0
130 )
131
132 except Exception as e:
133 logger.error(f"Build failed: {e}")
134 raise
135
136 def get_recent_builds(self, job_name: str, limit: int = 10) -> List[Dict]:
137 """Get recent builds for a job"""
138 try:
139 job = self.jenkins[job_name]
140 builds = []
141
142 for build_number in list(job.get_build_ids())[:limit]:
143 build = job.get_build(build_number)
144 builds.append({
145 'number': build_number,
146 'status': build.get_status(),
147 'result': build.get_result(),
148 'duration': build.get_duration().total_seconds(),
149 'timestamp': build.get_timestamp(),
150 'url': build.baseurl
151 })
152
153 return builds
154
155 except Exception as e:
156 logger.error(f"Failed to get builds: {e}")
157 return []
158
159
160class GitHubActionsManager:
161 """
162 GitHub Actions automation
163 """
164
165 def __init__(self, token: str):
166 """
167 Initialize GitHub connection
168
169 Args:
170 token: GitHub personal access token
171 """
172 try:
173 self.github = Github(token)
174 self.user = self.github.get_user()
175 logger.info(f"ā Connected to GitHub as: {self.user.login}")
176
177 except Exception as e:
178 logger.error(f"Failed to connect to GitHub: {e}")
179 raise
180
181 def trigger_workflow(self, repo_name: str,
182 workflow_id: str,
183 ref: str = 'main',
184 inputs: Dict = None) -> BuildResult:
185 """
186 Trigger GitHub Actions workflow
187
188 Args:
189 repo_name: Repository name (owner/repo)
190 workflow_id: Workflow ID or filename
191 ref: Git reference (branch/tag)
192 inputs: Workflow inputs
193
194 Returns:
195 Build result
196 """
197 try:
198 logger.info(f"š Triggering GitHub workflow: {repo_name}/{workflow_id}")
199
200 repo = self.github.get_repo(repo_name)
201 workflow = repo.get_workflow(workflow_id)
202
203 start_time = time.time()
204
205 if inputs:
206 workflow.create_dispatch(ref=ref, inputs=inputs)
207 else:
208 workflow.create_dispatch(ref=ref)
209
210 # Get the triggered run
211 time.sleep(5) # Wait for run to be created
212 runs = list(workflow.get_runs())
213
214 if runs:
215 latest_run = runs[0]
216 duration = time.time() - start_time
217
218 result = BuildResult(
219 pipeline_id=f"{repo_name}:{latest_run.id}",
220 platform='github-actions',
221 status=PipelineStatus.RUNNING,
222 duration=duration,
223 build_number=latest_run.id,
224 url=latest_run.html_url,
225 commit_sha=latest_run.head_sha[:7]
226 )
227
228 logger.info(f"ā Workflow triggered: {result.pipeline_id}")
229 return result
230
231 except Exception as e:
232 logger.error(f"Failed to trigger workflow: {e}")
233 raise
234
235 def get_workflow_status(self, repo_name: str, run_id: int) -> PipelineStatus:
236 """Get workflow run status"""
237 try:
238 repo = self.github.get_repo(repo_name)
239 run = repo.get_workflow_run(run_id)
240
241 if run.status == 'completed':
242 if run.conclusion == 'success':
243 return PipelineStatus.SUCCESS
244 else:
245 return PipelineStatus.FAILURE
246 else:
247 return PipelineStatus.RUNNING
248
249 except Exception as e:
250 logger.error(f"Failed to get status: {e}")
251 return PipelineStatus.PENDING
252
253
254class CICDOrchestrator:
255 """
256 Unified CI/CD orchestration platform
257 """
258
259 def __init__(self, jenkins_manager: JenkinsManager,
260 github_manager: GitHubActionsManager):
261 """
262 Initialize orchestrator
263
264 Args:
265 jenkins_manager: Jenkins manager instance
266 github_manager: GitHub Actions manager instance
267 """
268 self.jenkins = jenkins_manager
269 self.github = github_manager
270 self.build_history: List[BuildResult] = []
271 logger.info("šÆ CI/CD Orchestrator initialized")
272
273 def execute_deployment_pipeline(self, version: str,
274 environment: str = 'staging') -> Dict:
275 """
276 Execute complete deployment pipeline
277
278 Args:
279 version: Version to deploy
280 environment: Target environment
281
282 Returns:
283 Deployment result
284 """
285 logger.info(f"\n{'='*70}")
286 logger.info(f"š Starting deployment pipeline for v{version} to {environment}")
287 logger.info(f"{'='*70}")
288
289 pipeline_start = time.time()
290 results = {
291 'version': version,
292 'environment': environment,
293 'stages': {},
294 'overall_status': 'success',
295 'duration': 0
296 }
297
298 try:
299 # Stage 1: Build Application
300 logger.info("\nš¦ Stage 1: Building application...")
301 build_result = self.jenkins.trigger_build(
302 'build-app',
303 parameters={'VERSION': version, 'ENV': environment}
304 )
305 results['stages']['build'] = {
306 'status': build_result.status.value,
307 'duration': build_result.duration,
308 'url': build_result.url
309 }
310 self.build_history.append(build_result)
311
312 if build_result.status != PipelineStatus.SUCCESS:
313 raise Exception("Build failed")
314
315 # Stage 2: Run Tests
316 logger.info("\nš§Ŗ Stage 2: Running tests...")
317 test_result = self.github.trigger_workflow(
318 'devops-team/app',
319 'tests.yml',
320 inputs={'version': version}
321 )
322
323 # Wait for tests to complete
324 time.sleep(30) # In production, implement proper polling
325 test_status = self.github.get_workflow_status(
326 'devops-team/app',
327 test_result.build_number
328 )
329
330 results['stages']['test'] = {
331 'status': test_status.value,
332 'url': test_result.url
333 }
334
335 if test_status != PipelineStatus.SUCCESS:
336 raise Exception("Tests failed")
337
338 # Stage 3: Deploy
339 logger.info(f"\nš Stage 3: Deploying to {environment}...")
340 deploy_result = self.jenkins.trigger_build(
341 f'deploy-{environment}',
342 parameters={'VERSION': version}
343 )
344 results['stages']['deploy'] = {
345 'status': deploy_result.status.value,
346 'duration': deploy_result.duration,
347 'url': deploy_result.url
348 }
349 self.build_history.append(deploy_result)
350
351 if deploy_result.status != PipelineStatus.SUCCESS:
352 raise Exception("Deployment failed")
353
354 results['duration'] = time.time() - pipeline_start
355
356 logger.info(f"\n{'='*70}")
357 logger.info(f"ā
Deployment pipeline completed successfully!")
358 logger.info(f"Total duration: {results['duration']:.2f}s")
359 logger.info(f"{'='*70}")
360
361 except Exception as e:
362 results['overall_status'] = 'failure'
363 results['error'] = str(e)
364 results['duration'] = time.time() - pipeline_start
365
366 logger.error(f"\n{'='*70}")
367 logger.error(f"ā Deployment pipeline failed: {e}")
368 logger.error(f"{'='*70}")
369
370 return results
371
372 def get_pipeline_metrics(self) -> Dict:
373 """Calculate pipeline metrics"""
374 if not self.build_history:
375 return {}
376
377 total_builds = len(self.build_history)
378 successful = len([b for b in self.build_history
379 if b.status == PipelineStatus.SUCCESS])
380 failed = len([b for b in self.build_history
381 if b.status == PipelineStatus.FAILURE])
382
383 durations = [b.duration for b in self.build_history if b.duration > 0]
384
385 metrics = {
386 'total_builds': total_builds,
387 'successful_builds': successful,
388 'failed_builds': failed,
389 'success_rate': (successful / total_builds * 100) if total_builds > 0 else 0,
390 'average_duration': sum(durations) / len(durations) if durations else 0,
391 'min_duration': min(durations) if durations else 0,
392 'max_duration': max(durations) if durations else 0
393 }
394
395 return metrics
396
397
398def main():
399 """
400 Main entry point - CI/CD automation demonstration
401 """
402 print("\n" + "="*70)
403 print("š Production CI/CD Automation Platform")
404 print("="*70 + "\n")
405
406 try:
407 # Initialize managers
408 # Note: In production, use environment variables for credentials
409 jenkins = JenkinsManager(
410 url='http://jenkins:8080',
411 username='admin',
412 password='your-token-here'
413 )
414
415 github = GitHubActionsManager(token='your-github-token-here')
416
417 # Create orchestrator
418 orchestrator = CICDOrchestrator(jenkins, github)
419
420 # Execute deployment pipeline
421 result = orchestrator.execute_deployment_pipeline(
422 version='2.5.0',
423 environment='staging'
424 )
425
426 # Display results
427 print(f"\n{'='*70}")
428 print("š PIPELINE RESULTS")
429 print('='*70)
430 print(f"Version: {result['version']}")
431 print(f"Environment: {result['environment']}")
432 print(f"Status: {result['overall_status'].upper()}")
433 print(f"Duration: {result['duration']:.2f}s")
434 print("\nStages:")
435 for stage_name, stage_data in result['stages'].items():
436 print(f" {stage_name}: {stage_data['status']}")
437 print('='*70)
438
439 # Display metrics
440 metrics = orchestrator.get_pipeline_metrics()
441 if metrics:
442 print(f"\n{'='*70}")
443 print("š PIPELINE METRICS")
444 print('='*70)
445 print(f"Total Builds: {metrics['total_builds']}")
446 print(f"Success Rate: {metrics['success_rate']:.1f}%")
447 print(f"Average Duration: {metrics['average_duration']:.2f}s")
448 print('='*70)
449
450 logger.info("\nš CI/CD automation demonstration completed!")
451
452 except KeyboardInterrupt:
453 logger.info("\nā ļø Interrupted by user")
454 sys.exit(130)
455 except Exception as e:
456 logger.error(f"\nā Fatal error: {e}")
457 import traceback
458 traceback.print_exc()
459 sys.exit(1)
460
461
462if __name__ == "__main__":
463 main()š Comprehensive Implementation Breakdown:
1. Multi-Platform Architecture:
2. Jenkins Automation Features:
1jenkins.trigger_build('build-app', parameters={'VERSION': '2.5.0'})
2# Returns: BuildResult with status, duration, URL3. GitHub Actions Integration:
1github.trigger_workflow('org/repo', 'deploy.yml', inputs={'env': 'prod'})
2# Triggers workflow and tracks execution4. Deployment Pipeline Orchestration:
5. Pipeline Metrics & Analytics:
1metrics = orchestrator.get_pipeline_metrics()
2# Returns: success rate, avg duration, failure analysis6. Production Best Practices:
ā Credential Management: Environment variables for sensitive data
ā Error Resilience: Comprehensive exception handling with rollback
ā Monitoring: Detailed logging of all pipeline activities
ā Audit Trail: Complete build history tracking
ā Scalability: Supports multiple platforms and parallel execution
ā Type Safety: Dataclasses and enums for type-safe operations
7. Real-World Patterns:
8. Advanced Features:
This implementation provides enterprise-grade CI/CD automation used by DevOps teams to manage complex deployment workflows across multiple platforms at scale!
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