Sold by: Lynxroute
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This product has charges associated with it for hardening, security configuration, and support.
Flowable is an open-source process automation engine written in Java that runs BPMN 2.0 processes, CMMN 1.1 cases and DMN 1.3 decision tables behind a documented REST API, backed by a bundled PostgreSQL database. This Lynxroute build is hardened and ready out of the box: no credentials in the image with the API administrator password generated at first launch, the engine bound to loopback behind an nginx TLS perimeter, authentication required on every API route, management endpoints narrowed to health and info, UFW firewall pre-configured, and a CIS Level 1 hardened Ubuntu 24.04 LTS base.
Apache-2.0 license - fully auditable, no vendor lock-in.
Overview
This is a repackaged software product wherein additional charges apply for hardening, security configuration, and support.
WHAT IS FLOWABLE
Flowable is an open-source business process automation platform written in Java and packaged as a single Spring Boot application with an embedded Tomcat. It runs BPMN 2.0 process definitions, CMMN 1.1 cases, DMN 1.3 decision tables, an event registry and an identity module from one compact engine, and exposes every one of them over a documented REST API covering deployment, process and case execution, user task management, decision evaluation, and full historical audit queries. Process definitions are plain BPMN 2.0 XML authored in any compliant modelling tool, so the assets stay portable. State is persisted in a bundled PostgreSQL database on the instance. Apache-2.0 license, no vendor lock-in. Running it yourself keeps process definitions, task assignments and the complete audit history inside your own AWS account.
SCOPE OF THE OPEN SOURCE DISTRIBUTION
Flowable 7.0 removed the graphical UI applications from the open-source distribution. This AMI ships what upstream publishes today: the BPMN, CMMN, DMN, event registry and identity engines, their REST APIs, and the built-in API explorer. It does not include a graphical process modeller. Author diagrams in any BPMN 2.0 editor and deploy the XML through the REST API.
WHAT THIS AMI ADDS
Security hardening:
- No credentials in the image - the API administrator password and the database password are generated uniquely on each instance at first launch
- The engine listens on 127.0.0.1 only; nginx terminates TLS on port 443 and is the sole public listener
- Authentication required on every REST route; only the API explorer is reachable anonymously
- Management endpoints narrowed to health and info, so configuration and heap-dump endpoints are not mounted
- Java object deserialization of REST variables disabled
- PostgreSQL used as the datastore instead of the upstream file-based demo database, and bound to 127.0.0.1 only
- The engine archive is installed from Maven Central and verified against its published SHA-256 checksum
- UFW firewall pre-configured - only ports 22 and 443 accepted
- fail2ban and AppArmor pre-configured
- CVE scan - operating system packages are scanned for vulnerabilities before every release
OS hardening (CIS Level 1):
- CIS Ubuntu 24.04 LTS Level 1 benchmark applied via ansible-lockdown
- auditd, SSH hardening, Kernel hardening, IMDSv2 enforced
Compliance artifacts:
- SBOM - CycloneDX 1.6 at /etc/lynxroute/sbom.json
- CIS Conformance Report at /etc/lynxroute/cis-report.html
- CIS Tailored Profile at /usr/share/doc/lynxroute/CIS_TAILORED_PROFILE.md
Highlights
- Flowable security baked in: API administrator and database passwords generated uniquely on each instance at first launch, engine bound to 127.0.0.1 behind an nginx TLS perimeter, authentication required on every REST route, management endpoints narrowed to health and info, Java deserialization of REST variables disabled, UFW firewall pre-configured.
- CIS Level 1 hardened Ubuntu 24.04 LTS: auditd, fail2ban, AppArmor, SSH key-only, IMDSv2 enforced. CVE-scanned before every release. SBOM (CycloneDX) and CIS Conformance Report included.
- Standards-based process automation: BPMN 2.0, CMMN 1.1 and DMN 1.3 executed by one engine, driven entirely over REST, with full historical audit queries and a bundled PostgreSQL datastore. Apache-2.0 license - fully auditable, no vendor lock-in.
Details
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64-bit (x86) Amazon Machine Image (AMI)
Latest version
Operating system
Ubuntu 24.04
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Pricing
Free trial
Try this product free for 5 days according to the free trial terms set by the vendor. Usage-based pricing is in effect for usage beyond the free trial terms. Your free trial gets automatically converted to a paid subscription when the trial ends, but may be canceled any time before that.
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Additional AWS infrastructure costs may apply. Use the AWS Pricing Calculator to estimate your infrastructure costs.
Dimension | Cost/hour |
|---|---|
t3.large Recommended | $0.05 |
t3.medium | $0.03 |
m6i.xlarge | $0.05 |
m6i.large | $0.05 |
Vendor refund policy
We do not offer refunds for this product. AWS infrastructure charges (EC2, EBS, data transfer) are billed separately by AWS and are not refundable by us.
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Delivery details
64-bit (x86) Amazon Machine Image (AMI)
Amazon Machine Image (AMI)
An AMI is a virtual image that provides the information required to launch an instance. Amazon EC2 (Elastic Compute Cloud) instances are virtual servers on which you can run your applications and workloads, offering varying combinations of CPU, memory, storage, and networking resources. You can launch as many instances from as many different AMIs as you need.
Version release notes
Flowable 8.0.0 - Initial release (August 2026)
- Flowable 8.0.0 on Ubuntu 24.04 LTS
- CIS Level 1 hardening applied (ansible-lockdown/UBUNTU24-CIS)
- Operating system packages CVE-scanned before every release
- API administrator and database passwords generated uniquely on each instance at first launch
- Engine bound to 127.0.0.1; nginx terminates TLS on port 443
- Authentication required on every REST route
- Management endpoints narrowed to health and info
- Bundled PostgreSQL datastore, bound to 127.0.0.1 only
- Engine archive installed from Maven Central and SHA-256 verified
- UFW firewall pre-configured (ports 22 and 443 only)
- fail2ban, auditd, AppArmor pre-configured
- SBOM (CycloneDX 1.6) at /etc/lynxroute/sbom.json
- CIS Conformance Report (OpenSCAP) at /etc/lynxroute/cis-report.html
- IMDSv2 enforced
Additional details
Usage instructions
- Launch instance (t3.large recommended; t3.medium minimum)
- Open Security Group - allow TCP 443 from your IP
- SSH: ssh -i key.pem ubuntu@<PUBLIC_IP>
- Read credentials: sudo cat /root/flowable-credentials.txt
- Open https://<PUBLIC_IP>/ in your browser - accept the self-signed certificate warning. You land on the built-in API explorer; sign in with the user id and password from step 4. The first launch takes 2-4 minutes while the engine creates its database schema, and a progress page is shown until it is ready.
- Deploy a BPMN 2.0 process definition: curl -sk -u <user>:<password> -F "file=@my-process.bpmn20.xml" https://<PUBLIC_IP>/flowable-rest/service/repository/deployments
- Start an instance of it: curl -sk -u <user>:<password> -H "Content-Type: application/json" -d '{"processDefinitionKey":"myProcess"}' https://<PUBLIC_IP>/flowable-rest/service/runtime/process-instances
The API administrator password is generated uniquely on this instance and is not present in the AMI. Credentials are saved to /root/flowable-credentials.txt at first launch.
The engine listens on 127.0.0.1 only; nginx terminates TLS on port 443 and proxies to it. Process, case and decision state lives in a bundled PostgreSQL database on the instance.
API roots: BPMN /flowable-rest/service/, CMMN /flowable-rest/cmmn-api/, DMN /flowable-rest/dmn-api/, identity /flowable-rest/idm-api/.
Flowable's open-source distribution does not include a graphical process modeller. Author diagrams in any BPMN 2.0 editor and deploy the XML through the REST API shown above.
Replace the self-signed TLS certificate with a CA-signed certificate for production use: sudo certbot --nginx -d yourdomain.com
Resources
Vendor resources
Support
Vendor support
Visit us online: https://lynxroute.com
For Flowable documentation:
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