backend (FastAPI in a container) | IBM Cloud Code Engine | Run your Docker image as a public HTTPS app. Scales to zero, no cluster/VPC to run. | Free tier monthly: 100k vCPU‑sec, 200k GB‑sec, 100k HTTP req. Beyond that (as of 2025): $0.00003431 per vCPU‑sec, $0.00000356 per GB‑sec, $0.538 per 1M HTTP req. (cloud.ibm.com) |
| Container image hosting | IBM Cloud Container Registry | Private Docker registry to push/pull your app images. | First 5 GB pull traffic free/month; free plan historically includes ~500 MB storage, then flat per‑GB on standard plan. (Use the cost estimator in console for exact rate.) (cloud.ibm.com) |
mongo | IBM Cloud Databases for MongoDB (managed) | Fully managed MongoDB (HA 3‑member cluster, backups). | Priced by RAM, disk and backup, prorated hourly. Backup overage $0.03/GB‑month beyond included credit. Min sizes depend on plan/hosting model. (cloud.ibm.com) |
| Secrets (DB URL, admin creds, Twilio tokens) | IBM Cloud Secrets Manager | Centralize app secrets (Vault‑based). Optional Key Protect for CMK. | Standard plan charges per instance and per active secret (catalog currently shows $0.258/secret; instance around $385.20—verify in-region in console). Key Protect keys are $1.0764 per key‑version/month (from Jan 1, 2025). (cloud.ibm.com) |
| Logs from app | IBM Cloud Logs | Centralized log ingestion, search, alerting. | Standard plan: Store & Search $0.48/GB, Analyze & Alert $0.75/GB, optional “Priority insights” tiers from $1.20–$3.25/GB depending on retention. (cloud.ibm.com) |
| Metrics/monitoring | IBM Cloud Monitoring (Sysdig) | Host/containers metrics, dashboards & alerts. | Billed by connected agents/usage; catalog shows a base ~$37/host/month with quotas (use estimator for your region). (cloud.ibm.com) |
| Static files/backups (optional) | IBM Cloud Object Storage | Cheap durable object storage; great for exports/attachments. | One‑Rate promo advertises ~$12/TB‑month (promo), otherwise transfers have per‑GB charges; see current region pricing in console. (IBM, cloud.ibm.com) |
| Custom domain, TLS, DDoS/WAF/CDN (optional) | IBM Cloud Internet Services (CIS) | Cloudflare‑powered DNS/CDN/WAF in IBM. | Pricing page lists: $500/instance, $2 per million request events, $600/TB protected traffic, $400/primary domain, $4/secondary domain. (cloud.ibm.com) |