CPKs, CPBs, and CPIs generation and management in Corda 5

[JB Beni]

<p lang=”es-TRAD” style=”margin: 0in; font-family: Calibri; font-size: 11.0pt;”>Hello,</p>
<p lang=”es-TRAD” style=”margin: 0in; font-family: Calibri; font-size: 11.0pt;”></p>
<p lang=”es-TRAD” style=”margin: 0in; font-family: Calibri; font-size: 11.0pt;”>I am new to the Java/Kotlin world and have just started working with Corda 5. I am trying to understand how CPKs, CPBs, and CPIs are managed, but I’m having some difficulty. I have been looking at package documentation and how Graddle tasks work on the CSDE. The following questions arise:</p>
<p lang=”es-TRAD” style=”margin: 0in; font-family: Calibri; font-size: 11.0pt;”></p>
<p lang=”es-TRAD” style=”margin: 0in; font-family: Calibri; font-size: 11.0pt;”>CPKs generation: On tutorials, when CPBs need to be generated, “jar” task is being executed, followed by the “cpb” task (./gradlew cpb). As I understand cpb task generates CPKs from Jars, but, how can I manually generate these CPKs?</p>
<p lang=”es-TRAD” style=”margin: 0in; font-family: Calibri; font-size: 11.0pt;”></p>
<p lang=”es-TRAD” style=”margin: 0in; font-family: Calibri; font-size: 11.0pt;”>CPIs generation: On CSDE example templates, I have seen that when “graddle cpb” is executed, a “cpb” for the “contracts” submodule and another one for “workflows” submodule are generated. However, the “3-buildCPIs” script only uses the CPB from “workflows” submodule. So, what is the other CPB for?</p>
<p lang=”es-TRAD” style=”margin: 0in; font-family: Calibri; font-size: 11.0pt;”></p>
<p lang=”es-TRAD” style=”margin: 0in; font-family: Calibri; font-size: 11.0pt;”>Package signing: As I understand from the documentation, packages are always signed with one of the generated keys. Is it necessary to always use the same key? On the CSDE, the “3-buildCPIs” task signs with the key stored in the “workspace” directory. However, what key is using “cpb” task (./gradlew cpb) to sign? can i add a path to my keys?</p>
<p lang=”es-TRAD” style=”margin: 0in; font-family: Calibri; font-size: 11.0pt;”></p>
<p lang=”es-TRAD” style=”margin: 0in; font-family: Calibri; font-size: 11.0pt;”>Multiple CPBs: Is it possible to pass multiple CPBs in CPI generation commands?</p>
<p lang=”es-TRAD” style=”margin: 0in; font-family: Calibri; font-size: 11.0pt;”></p>
<p lang=”es-TRAD” style=”margin: 0in; font-family: Calibri; font-size: 11.0pt;”>I hope these are not too obvious questions. I find the CSDE very useful, but I would like to understand how to generate/organize my CPKs, CPBs, and CPIs and what strategies I should follow to correctly manage these files in a production environment, taking advantage of the decoupling offered by Corda 5.</p>
<p lang=”es-TRAD” style=”margin: 0in; font-family: Calibri; font-size: 11.0pt;”></p>
<p lang=”es-TRAD” style=”margin: 0in; font-family: Calibri; font-size: 11.0pt;”>Any help or additional information you can provide would be greatly appreciated.</p>
<p lang=”es-TRAD” style=”margin: 0in; font-family: Calibri; font-size: 11.0pt;”></p>
<p lang=”es-TRAD” style=”margin: 0in; font-family: Calibri; font-size: 11.0pt;”>I also wanted to take this opportunity to congratulate Corda team to the work done in Corda 5. The proposed architecture seems to be very promising.</p>
<p lang=”es-TRAD” style=”margin: 0in; font-family: Calibri; font-size: 11.0pt;”></p>
<p lang=”es-TRAD” style=”margin: 0in; font-family: Calibri; font-size: 11.0pt;”>Thank you!</p>

Topic

[JB Beni]

Delete this topic. I can not edit or delete it

[Author]

Replies