test.yml: use inject-cmdline-to-template.sh to append `no_timer_che…

…ck` kernel command line option

This change aims to avoid kernel panics in the integration tests and vmnet tests.
```console
==> /Users/runner/.lima/default/serial.log <==
[    0.015000]  setup_IO_APIC+0x2c3/0x370
[    0.015000]  ? enable_IO_APIC+0x1af/0x290
[    0.015000]  apic_intr_mode_init+0x61/0x130
[    0.015000]  x86_late_time_init+0x24/0x40
[    0.015000]  start_kernel+0x2be/0x450
[    0.015000]  x86_64_start_reservations+0x18/0x30
[    0.015000]  x86_64_start_kernel+0xbf/0x110
[    0.015000]  secondary_startup_64_no_verify+0x184/0x18b
[    0.015000]  </TASK>
[    0.015000] ---[ end Kernel panic - not syncing: IO-APIC + timer doesn't work!  Boot with apic=debug and send a report.  Then try booting with the 'noapic' option. ]---
```

The reason `no_timer_check` is used instead of `noapic`, as shown in the kernel panic log, is because I read the following page.
https://lore.kernel.org/all/18354be1-8dba-84f1-bdf5-6821a5013d78@oracle.com/T/

Signed-off-by: Norio Nomura <norio.nomura@gmail.com>

inject-cmdline-to-template.sh: resolve shfmt issue

Signed-off-by: Norio Nomura <norio.nomura@gmail.com>

test.yml: add link to issue

#84
Signed-off-by: Norio Nomura <norio.nomura@gmail.com>

inject-cmdline-to-template.sh: add comment lines to explain what this script does

Signed-off-by: Norio Nomura <norio.nomura@gmail.com>

.github/workflows/test.yml

@@ -184,6 +184,9 @@ jobs:
         time brew install qemu bash coreutils curl jq
     - name: "Show cache"
       run: ./hack/debug-cache.sh
+    - name: "Inject `no_timer_check` to kernel cmdline"
+      # workaround to https://github.com/lima-vm/lima/issues/84
+      run: ./hack/inject-cmdline-to-template.sh templates/default.yaml no_timer_check
     - name: "Test default.yaml"
       uses: nick-invision/retry@v3
       with:
@@ -356,6 +359,9 @@ jobs:
     - name: Unit test (pkg/networks) with socket_vmnet
       # Set -count=1 to disable cache
       run: go test -v -count=1 ./pkg/networks/...
+    - name: "Inject `no_timer_check` to kernel cmdline"
+      # workaround to https://github.com/lima-vm/lima/issues/84
+      run: ./hack/inject-cmdline-to-template.sh templates/vmnet.yaml no_timer_check
     - name: Test socket_vmnet
       uses: nick-invision/retry@v3
       with:

hack/inject-cmdline-to-template.sh

@@ -0,0 +1,94 @@
+#!/usr/bin/env bash
+#
+# This script does
+# 1. detect arch from template if not provided
+# 2. extract location by parsing template using arch
+# 3. get the image location
+# 4. check the image location is supported
+# 5. build the kernel and initrd location, digest, and cmdline
+# 6. inject the kernel and initrd location, digest, and cmdline to the template
+# 7. output kernel_location, kernel_digest, cmdline, initrd_location, initrd_digest
+
+set -eu -o pipefail
+
+template="$1"
+appending_options="$2"
+# 1. detect arch from template if not provided
+arch="${3:-$(yq '.arch // ""' "${template}")}"
+arch="${arch:-$(uname -m)}"
+
+# normalize arch. amd64 -> x86_64, arm64 -> aarch64
+case "${arch}" in
+amd64 | x86_64) arch=x86_64 ;;
+aarch64 | arm64) arch=aarch64 ;;
+*)
+	echo "Unsupported arch: ${arch}" >&2
+	exit 1
+	;;
+esac
+
+# 2. extract location by parsing template using arch
+readonly yq_filter="
+[
+    .images | map(select(.arch == \"${arch}\")) | [.[].location]
+]|flatten|.[]
+"
+parsed=$(yq eval "${yq_filter}" "${template}")
+
+# 3. get the image location
+while IFS= read -r line; do arr+=("${line}"); done <<<"${parsed}"
+readonly locations=("${arr[@]}")
+for ((i = 0; i < ${#locations[@]}; i++)); do
+	[[ ${locations[i]} != "null" ]] || continue
+	http_code=$(curl -sIL -w "%{http_code}" "${locations[i]}" -o /dev/null)
+	if [[ ${http_code} -eq 200 ]]; then
+		location=${locations[i]}
+		index=${i}
+		break
+	fi
+done
+
+# 4. check the image location is supported
+if [[ -z ${location} ]]; then
+	echo "Failed to get the image location for ${template}" >&2
+	exit 1
+elif [[ ${location} == https://cloud-images.ubuntu.com/* ]]; then
+	readonly default_cmdline="root=LABEL=cloudimg-rootfs ro console=tty1 console=ttyAMA0"
+else
+	echo "Unsupported image location: ${location}" >&2
+	exit 1
+fi
+
+# 5. build the kernel and initrd location, digest, and cmdline
+location_dirname=$(dirname "${location}")/unpacked
+sha256sums=$(curl -sSLf "${location_dirname}/SHA256SUMS")
+location_basename=$(basename "${location}")
+
+# cmdline
+cmdline="${default_cmdline} ${appending_options}"
+
+# kernel
+kernel_basename="${location_basename/.img/-vmlinuz-generic}"
+kernel_digest=$(awk "/${kernel_basename}/{print \"sha256:\"\$1}" <<<"${sha256sums}")
+kernel_location="${location_dirname}/${kernel_basename}"
+
+# initrd
+initrd_basename="${location_basename/.img/-initrd-generic}"
+initrd_digest=$(awk "/${initrd_basename}/{print \"sha256:\"\$1}" <<<"${sha256sums}")
+initrd_location="${location_dirname}/${initrd_basename}"
+
+# 6. inject the kernel and initrd location, digest, and cmdline to the template
+yq -i eval "
+    [(.images.[] | select(.arch == \"${arch}\") | path)].[${index}] + \"kernel\" as \$path|
+    setpath(\$path; { \"location\": \"${kernel_location}\", \"digest\": \"${kernel_digest}\", \"cmdline\": \"${cmdline}\" })
+" "${template}"
+yq -i eval "
+    [(.images.[] | select(.arch == \"${arch}\") | path)].[${index}] + \"initrd\" as \$path|
+    setpath(\$path ; { \"location\": \"${initrd_location}\", \"digest\": \"${initrd_digest}\" })
+" "${template}"
+
+# 7. output kernel_location, kernel_digest, cmdline, initrd_location, initrd_digest
+readonly outputs=(kernel_location kernel_digest cmdline initrd_location initrd_digest)
+for output in "${outputs[@]}"; do
+	echo "${output}=${!output}"
+done