Hello all, I just submitted the PR for an update to ActionLoop to support
"more"...
First and before all, I changed the name to actionloop-v1.0.2 so any build
depending on it can retrieve the right version... (more version, if there is
any potentially breaking change, will use a different name).
Then the changes.
Now the binary is built statically, so it works in "more" Docker images (most
notably it should work also in Alpine images). The current actionloop depends
on GLIBC so, for example, I had to use an ubuntu based images for Python3.7
instead of an Alpine one... This now changed.
The other important change is a behviour in compilation and type detection. A
script is detected as executable if it starts with '#!' (before an exectuable
had to be an elf binary), and the "precompilation" feature now gather all the
files in the "bin" folder. In short those changes let me to build a prototype
of the upcoming ActionLoop for java.
Now you can creating an action from a java source (and it will be compiled on
the fly):
$ wsk action create test/hello-java main.java --docker actionloop/java-v8
$ wsk action invoke test/hello-java -r
{
"greeting": "Hello stranger!"
}
And also precompilation works:
$ docker run -i actionloop/java-v8 -compile main <main.java >main.zip
$ wsk action update test/hello-java main.zip --docker actionloop/java-v8
ok: updated action test/hello-java
$ wsk action invoke test/hello-java -r
{
"greeting": "Hello stranger!"
}
For the curious, here is what is in the main.zip:
$ unzip -l main.zip
exec
classes/exec__.class
classes/main.class
Here exec is not a binary (as it used to be) but a shell script that launches
the java application, compiled in the main.class with added a launcher
implementing the actionloop protocol.
PS no, the runtime for java is not yet ready there is a lot of more work to do,
I needed those changes in the base runtime to move forward. And I have to help
finish the rust runtime first...
--
Michele Sciabarra
[email protected]
