update: automate image-specific metadata description

Author: inureyes

julia/Dockerfile.1.8-ubuntu20.04

@@ -87,7 +87,10 @@ RUN julia -e 'using IJulia' && \
     chmod -R 755 /opt/julia/compiled
 SHELL ["/bin/sh", "-c"]
 # Install ipython kernelspec
-COPY kernel.1.8.json /usr/local/share/jupyter/kernels/julia-1.8/kernel.json
+COPY replace_placeholder.sh /etc/backend.ai/replace_placeholder.sh
+COPY kernel.json /usr/local/share/jupyter/kernels/julia-1.8/kernel.json
+RUN /etc/backend.ai/replace_placeholder.sh && \
+    rm /etc/backend.ai/replace_placeholder.sh
 COPY logo-32x32.png /usr/local/share/jupyter/kernels/julia-1.8/logo-32x32.png
 COPY logo-64x64.png /usr/local/share/jupyter/kernels/julia-1.8/logo-64x64.png
 

julia/kernel.flux.013.json

@@ -5,7 +5,7 @@
     "-i",
     "--startup-file=yes",
     "--color=yes",
-    "/opt/julia/packages/IJulia/6TIq1/src/kernel.jl",
+    "/opt/julia/packages/IJulia/[PLACEHOLDER]/src/kernel.jl",
     "{connection_file}"
   ],
   "language": "julia",

julia/kernel.flux.json

@@ -0,0 +1,13 @@
+{
+  "display_name": "FluxML 0.13 on Backend.AI",
+  "argv": [
+    "/usr/local/julia/bin/julia",
+    "-i",
+    "--startup-file=yes",
+    "--color=yes",
+    "/opt/julia/packages/IJulia/PLACEHOLDER/src/kernel.jl",
+    "{connection_file}"
+  ],
+  "language": "julia",
+  "env": {}
+}

julia/kernel.1.8.json renamed to julia/kernel.json

@@ -5,7 +5,7 @@
     "-i",
     "--startup-file=yes",
     "--color=yes",
-    "/opt/julia/packages/IJulia/6TIq1/src/kernel.jl",
+    "/opt/julia/packages/IJulia/PLACEHOLDER/src/kernel.jl",
     "{connection_file}"
   ],
   "language": "julia",

julia/replace_placeholder.sh

@@ -0,0 +1,6 @@
+#!/bin/bash
+path="/opt/julia/packages/IJulia"
+first_dir=$(ls -1 "$path" | head -1)
+file="/usr/local/share/jupyter/kernels/julia-1.8/kernel.json"
+old_string="PLACEHOLDER"
+sed -i "s/$old_string/$first_dir/g" $file