> ## Documentation Index
> Fetch the complete documentation index at: https://docs.apinizer.com/llms.txt
> Use this file to discover all available pages before exploring further.

# API Proxy Deployment Issues

> You can detect API Proxy deployment issues in Apinizer, resolve deployment failures caused by configuration errors, and manage environment preparation and resource allocation.

## Problem Symptoms

<Warning>
  API Proxy deployment issues usually manifest themselves with the following symptoms:
</Warning>

* Deployment operation failing
* API Proxy not being deployable
* API not working after deployment
* Version conflict errors
* Environment mismatch errors

## Problem Causes

API Proxy deployment issues can usually be caused by the following factors:

* **Configuration Errors**: Errors in API Proxy configuration
* **Environment Issues**: Target environment not being ready
* **Resource Insufficiency**: Insufficient CPU, RAM, or storage
* **Dependency Issues**: Missing or incompatible dependencies
* **Network Issues**: Gateway access issues
* **Policy Issues**: Policies not being deployable
* **Version Conflict**: Version conflicts

## Detection Methods

### 1. Deployment Log Analysis

<Steps>
  <Step title="Check Log Files">
    Check deployment logs:

    ```bash theme={null}
    kubectl logs <gateway-pod-name> | grep -i "deploy"
    kubectl logs <gateway-pod-name> | grep -i "error"
    kubectl describe pod <gateway-pod-name>
    ```
  </Step>
</Steps>

### 2. Checking API Proxy Status

<Info>
  Follow the steps below to check API Proxy status:
</Info>

* Check API Proxy's deployment status
* Check which environment it was deployed to
* Review deployment history

### 3. Environment Check

Check the target environment:

* Check that the environment is active
* Check that Gateway pods are running
* Check environment resources

## Solution Recommendations

### 1. Configuration Check

Check API Proxy configuration:

* **Endpoints**: Are endpoint definitions correct?
* **Policies**: Are policies correctly configured?
* **Upstream Targets**: Are backend targets correct?
* **Routing**: Are routing rules correct?

### 2. Environment Preparation

Prepare the environment:

* Ensure the environment is active
* Check that Gateway pods are running
* Check that there are sufficient resources
* Check network connection

### 3. Resource Allocation

Ensure there are sufficient resources:

```yaml theme={null}
resources:
  limits:
    cpu: "2"
    memory: "4Gi"
  requests:
    cpu: "1"
    memory: "2Gi"
```

### 4. Dependency Check

Check dependencies:

* Are policies deployed?
* Are Connections defined?
* Are Identity Providers ready?
* Are Certificates loaded?

### 5. Version Management

Check version management:

* Check current version
* Resolve version conflicts
* Use rollback mechanism

### 6. Incremental Deployment

Perform incremental deployment:

* Deploy to test environment first
* Move to production after tests pass
* Use blue-green deployment
* Use canary deployment

## Common Error Scenarios and Solutions

### Scenario 1: Policy Deployment Error

<Warning>
  **Symptoms:**

  * "Policy deployment failed" error
  * Policies not being applied
</Warning>

**Solution:**

* Check policy configuration
* Check policy syntax
* Check policy dependencies

### Scenario 2: Environment Not Found

<Warning>
  **Symptoms:**

  * "Environment not found" error
  * Deployment not finding target environment
</Warning>

**Solution:**

* Check environment name
* Check that environment is active
* Check environment access permissions

### Scenario 3: Resource Exhaustion

<Warning>
  **Symptoms:**

  * "Insufficient resources" error
  * Pods not being schedulable
</Warning>

**Solution:**

* Check cluster resources
* Reduce resource requests
* Enable auto-scaling

### Scenario 4: Network Connectivity

<Warning>
  **Symptoms:**

  * "Connection refused" error
  * Cannot access Gateway
</Warning>

**Solution:**

* Check network policies
* Check service endpoints
* Check DNS resolution

## Best Practices

### 1. Pre-Deployment Checklist

<Note>
  Pre-deployment checklist:
</Note>

* [ ] Is API Proxy configuration correct?
* [ ] Are all policies deployed?
* [ ] Is environment ready?
* [ ] Are there sufficient resources?
* [ ] Did tests pass?

### 2. Deployment Strategy

<Info>
  Apply the following approaches for deployment strategy:
</Info>

* **Test First**: Deploy to test environment first
* **Gradual Rollout**: Perform gradual rollout
* **Monitoring**: Monitor after deployment
* **Rollback Plan**: Prepare rollback plan

### 3. Monitoring

<Info>
  Track the following metrics for post-deployment monitoring:
</Info>

* Monitor API Proxy status
* Check error rates
* Monitor response times
* Check resource usage

## Related Resources

* [Deployment and Version Management](/en/develop/deployment-and-version-management)
* [Gateway Runtime Management](/en/admin/server-management/gateway-runtimes)
* [Troubleshooting Guide](/en/operations/troubleshooting/kubernetes-docker-containerd-troubleshooting)