Update fish demo with copy_bom tool

Signed-off-by: Zheng, Qi <huaiqing.zq@antgroup.com>

demos/fish/Occlum.json

@@ -1,65 +0,0 @@
-{
-    "resource_limits": {
-        "user_space_size": "512MB",
-        "kernel_space_heap_size": "64MB",
-        "kernel_space_stack_size": "1MB",
-        "max_num_of_threads": 32
-    },
-    "process": {
-        "default_stack_size": "4MB",
-        "default_heap_size": "32MB",
-        "default_mmap_size": "80MB"
-    },
-    "entry_points": [
-        "/bin"
-    ],
-    "env": {
-        "default": [
-            "OCCLUM=yes",
-            "HOME=/root"
-        ],
-        "untrusted": [
-        ]
-    },
-    "metadata": {
-        "product_id": 0,
-        "version_number": 0,
-        "debuggable": true
-    },
-    "mount": [
-        {
-            "target": "/",
-            "type": "unionfs",
-            "options": {
-                "layers": [
-                    {
-                        "target": "/",
-                        "type": "sefs",
-                        "source": "./build/mount/__ROOT",
-                        "options": {
-                            "MAC": ""
-                        }
-                    },
-                    {
-                        "target": "/",
-                        "type": "sefs",
-                        "source": "./run/mount/__ROOT"
-                    }
-                ]
-            }
-        },
-        {
-            "target": "/host",
-            "type": "hostfs",
-            "source": "."
-        },
-        {
-            "target": "/proc",
-            "type": "procfs"
-        },
-        {
-            "target": "/dev",
-            "type": "devfs"
-        }
-    ]
-}

demos/fish/fish.yaml

@@ -0,0 +1,24 @@
+includes:
+  - base.yaml
+# fish
+targets:
+  - target: /usr/bin
+    # copy bins
+    copy:
+      - files:
+        - ../fish-shell/build/fish
+        - ../busybox/busybox
+  - target: /bin
+    # copy script
+    copy:
+      - files:
+        - ../fish_script.sh
+        - ../test_per_process_config.sh
+    # busybox links
+    createlinks:
+      - src: /usr/bin/busybox
+        linkname: cat
+      - src: /usr/bin/busybox
+        linkname: echo
+      - src: /usr/bin/busybox
+        linkname: awk

demos/fish/run_fish_test.sh

@@ -1,19 +1,20 @@
 #!/bin/bash
 set -e
 
+SCRIPT_DIR=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )
+bomfile=${SCRIPT_DIR}/fish.yaml
+
 rm -rf occlum-instance
-mkdir occlum-instance && cd occlum-instance
-occlum init
-mkdir -p image/usr/bin
-cp ../Occlum.json .
-cp ../fish-shell/build/fish image/usr/bin
-cp ../busybox/busybox image/usr/bin
-cp ../fish_script.sh image/bin
-pushd image/bin
-ln -s /usr/bin/busybox cat
-ln -s /usr/bin/busybox echo
-ln -s /usr/bin/busybox awk
-popd
+occlum new occlum-instance
+cd occlum-instance
+
+new_json="$(jq '.resource_limits.user_space_size = "512MB" |
+            .resource_limits.kernel_space_heap_size = "64MB" |
+            .env.default = [ "OCCLUM=yes", "HOME=/root" ]' Occlum.json)" && \
+    echo "${new_json}" > Occlum.json
+
+rm -rf image
+copy_bom -f $bomfile --root image --include-dir /opt/occlum/etc/template
 
 occlum build
 echo -e "\nBuild done. Running fish script ..."

demos/fish/run_per_process_config_test.sh

@@ -1,28 +1,25 @@
 #!/bin/bash
 set -e
 
+SCRIPT_DIR=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )
+bomfile=${SCRIPT_DIR}/fish.yaml
+
 option=$1
 
 rm -rf occlum-test
-mkdir occlum-test && cd occlum-test
-occlum init
-mkdir -p image/usr/bin
-cp ../Occlum.json .
-cp ../fish-shell/build/fish image/usr/bin
-cp ../busybox/busybox image/usr/bin
-cp ../test_per_process_config.sh image/bin
+occlum new occlum-test && cd occlum-test
 
 # Set process memory space size to very small values and will fail when running target script using default configuration
-new_json="$(jq '.process.default_stack_size = "1MB" |
+new_json="$(jq '.resource_limits.user_space_size = "512MB" |
+                .resource_limits.kernel_space_heap_size= "64MB" |
+                .process.default_stack_size = "1MB" |
                 .process.default_heap_size = "1MB" |
-                .process.default_mmap_size = "10MB"' Occlum.json)" && \
+                .process.default_mmap_size = "10MB" |
+                .env.default = [ "OCCLUM=yes", "HOME=/root" ]' Occlum.json)" && \
 echo "${new_json}" > Occlum.json
 
-pushd image/bin
-ln -s /usr/bin/busybox cat
-ln -s /usr/bin/busybox echo
-ln -s /usr/bin/busybox awk
-popd
+rm -rf image
+copy_bom -f $bomfile --root image --include-dir /opt/occlum/etc/template
 
 # If `--without-ulimit` is specified, run without ulimit command and thus will fail
 if [[ $1 == "--without-ulimit" ]]; then