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chore(docs): update getting-started.md with new artifact system #5950

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chore(docs): update getting-started.md with new artifact system #5950

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29 changes: 18 additions & 11 deletions docs/getting-started.md
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Original file line number Diff line number Diff line change
Expand Up @@ -100,23 +100,30 @@ release.

```bash
ARCH="$(uname -m)"
release_url="https://github.com/firecracker-microvm/firecracker/releases"
latest_version=$(basename $(curl -fsSLI -o /dev/null -w %{url_effective} ${release_url}/latest))
CI_VERSION=${latest_version%.*}
latest_kernel_key=$(curl "http://spec.ccfc.min.s3.amazonaws.com/?prefix=firecracker-ci/$CI_VERSION/$ARCH/vmlinux-&list-type=2" \
| grep -oP "(?<=<Key>)(firecracker-ci/$CI_VERSION/$ARCH/vmlinux-[0-9]+\.[0-9]+\.[0-9]{1,3})(?=</Key>)" \
| sort -V | tail -1)
S3="https://s3.amazonaws.com/spec.ccfc.min"

# Fetch latest CI artifact build. `sort` + `tail` returns artifacts with latest YYYYMMDD.
CI_ARTIFACTS_PREFIX=$(curl -fsSL "$S3?list-type=2&prefix=firecracker-ci/&delimiter=/" \
| grep -oP "(?<=<Prefix>)firecracker-ci/[0-9]{8}-[^/]+/(?=</Prefix>)" \
| sort \
| tail -1)

latest_kernel_key=$(curl -fsSL "$S3?list-type=2&prefix=${CI_ARTIFACTS_PREFIX}${ARCH}/vmlinux-" \
| grep -oP "(?<=<Key>)(${CI_ARTIFACTS_PREFIX}${ARCH}/vmlinux-[0-9]+\.[0-9]+\.[0-9]{1,3})(?=</Key>)" \
| sort -V \
| tail -1)

# Download a linux kernel binary
wget "https://s3.amazonaws.com/spec.ccfc.min/${latest_kernel_key}"
wget "$S3/${latest_kernel_key}"

latest_ubuntu_key=$(curl "http://spec.ccfc.min.s3.amazonaws.com/?prefix=firecracker-ci/$CI_VERSION/$ARCH/ubuntu-&list-type=2" \
| grep -oP "(?<=<Key>)(firecracker-ci/$CI_VERSION/$ARCH/ubuntu-[0-9]+\.[0-9]+\.squashfs)(?=</Key>)" \
| sort -V | tail -1)
latest_ubuntu_key=$(curl -fsSL "$S3?list-type=2&prefix=${CI_ARTIFACTS_PREFIX}${ARCH}/ubuntu-" \
| grep -oP "(?<=<Key>)(${CI_ARTIFACTS_PREFIX}${ARCH}/ubuntu-[0-9]+\.[0-9]+\.squashfs)(?=</Key>)" \
| sort -V \
| tail -1)
ubuntu_version=$(basename $latest_ubuntu_key .squashfs | grep -oE '[0-9]+\.[0-9]+')

# Download a rootfs from Firecracker CI
wget -O ubuntu-$ubuntu_version.squashfs.upstream "https://s3.amazonaws.com/spec.ccfc.min/$latest_ubuntu_key"
wget -O ubuntu-$ubuntu_version.squashfs.upstream "$S3/$latest_ubuntu_key"

# The rootfs in our CI doesn't contain SSH keys to connect to the VM
# For the purpose of this demo, let's create one and patch it in the rootfs
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