1# Assessment: Functions Plan Upgrade
2 
3Generate an upgrade assessment report before any changes to Azure resources.
4 
5## Prerequisites
6 
7- User has an existing Azure Functions app on a Consumption or other plan
8- User has Azure CLI v2.77.0+ installed
9- User has Owner or Contributor role in the target resource group
10- The `resource-graph` extension is installed (`az extension add --name resource-graph`)
11 
12## Assessment Steps
13 
141. **Identify Source App** — Confirm the function app name, resource group, region, and current hosting plan
152. **Check Region Compatibility** — Verify the target plan is available in the app's region
163. **Verify Language Stack** — Confirm the app's runtime is supported on the target plan
174. **Verify Stack Version** — Confirm the runtime version is supported on the target plan in the region
185. **Check Deployment Slots** — Determine if slots are in use (Flex Consumption doesn't support slots)
196. **Check Certificates** — Determine if TLS/SSL certificates are in use (not yet supported in Flex Consumption)
207. **Check Blob Triggers** — Verify blob triggers use EventGrid source (container polling not supported in Flex Consumption)
218. **Assess Dependencies** — Review upstream and downstream service dependencies and plan mitigation strategies
229. **Generate Report** — Create `upgrade-assessment-report.md`
23 
24## Assessment Report Format
25 
26> ⚠️ **MANDATORY**: Use these exact section headings in every assessment report. Do NOT rename, reorder, or omit sections.
27 
28The report MUST be saved as `upgrade-assessment-report.md` in the workspace root.
29 
30```markdown
31# Upgrade Assessment Report
32 
33## 1. Executive Summary
34 
35| Property | Value |
36|----------|-------|
37| **App Name** | <app-name> |
38| **Resource Group** | <resource-group> |
39| **Current Plan** | <current-plan (e.g., Consumption / Y1 Dynamic)> |
40| **Target Plan** | <target-plan (e.g., Flex Consumption / FC1)> |
41| **Region** | <region> |
42| **Runtime** | <runtime and version> |
43| **OS** | <Linux / Windows> |
44| **Upgrade Readiness** | <Ready / Needs Attention / Blocked> |
45| **Assessment Date** | <date> |
46 
47## 2. Compatibility Checks
48 
49| Check | Status | Details |
50|-------|--------|---------|
51| Region supported | ✅ / ❌ | |
52| Language stack supported | ✅ / ❌ | |
53| Stack version supported | ✅ / ❌ | |
54| No deployment slots | ✅ / ⚠️ | |
55| No TLS/SSL certificates | ✅ / ⚠️ | |
56| Blob triggers use EventGrid | ✅ / ⚠️ / N/A | |
57| .NET isolated (not in-process) | ✅ / ❌ / N/A | |
58 
59## 3. App Settings Inventory
60 
61| Setting | Value | Migrate? | Notes |
62|---------|-------|----------|-------|
63| | | Yes / No / Convert | |
64 
65## 4. Managed Identities
66 
67| Type | Principal ID | Roles | Action |
68|------|-------------|-------|--------|
69| System-assigned | | | Recreate in new app |
70| User-assigned | | | Reassign to new app |
71 
72## 5. Application Configurations
73 
74| Configuration | Current Value | Migrate? | Notes |
75|---------------|---------------|----------|-------|
76| CORS settings | | | |
77| Custom domains | | | |
78| HTTP version | | | |
79| HTTPS only | | | |
80| TLS version | | | |
81| Client certificates | | | |
82| Access restrictions | | | |
83| Built-in auth | | | |
84 
85## 6. Trigger & Binding Analysis
86 
87| Function | Trigger Type | Source | Migration Risk | Mitigation |
88|----------|-------------|--------|----------------|------------|
89| | | | Low / Medium / High | |
90 
91## 7. Dependent Services
92 
93| Service | Dependency Type | Migration Risk | Mitigation Strategy |
94|---------|----------------|----------------|---------------------|
95| | Upstream / Downstream | | |
96 
97## 8. Blockers & Warnings
98 
99### Blockers (must fix before upgrade)
100- [ ] <any blocking issues>
101 
102### Warnings (should address but not blocking)
103- [ ] <any non-blocking concerns>
104 
105## 9. Recommendations
106 
1071. **Plan**: <recommended target plan>
1082. **Auth**: <switch to Managed Identity if using connection strings>
1093. **Monitoring**: <Application Insights configuration>
1104. **Scaling**: <recommended instance count and concurrency settings>
111 
112## 10. Next Steps
113 
114- [ ] Review and approve this assessment
115- [ ] Address any blockers listed above
116- [ ] Proceed to automated upgrade (Phase 3-4)
117```
118 
119> 💡 **Tip:** Use `mcp_azure_mcp_get_azure_bestpractices` to get the latest recommendations for the target hosting plan.
120