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| 1 | +#!/bin/bash |
| 2 | +# SPDX-FileCopyrightText: © 2025 Phala Network <dstack@phala.network> |
| 3 | +# SPDX-License-Identifier: Apache-2.0 |
| 4 | +# |
| 5 | +# dstack guest image OCI packaging tool |
| 6 | +# Pack and push dstack guest OS images to an OCI-compatible container registry. |
| 7 | +set -euo pipefail |
| 8 | + |
| 9 | +REGISTRY="${DSTACK_IMAGE_REGISTRY:-}" |
| 10 | +REPO="${DSTACK_IMAGE_REPO:-dstack/guest-image}" |
| 11 | + |
| 12 | +usage() { |
| 13 | + cat <<EOF |
| 14 | +Usage: $0 <command> [options] |
| 15 | +
|
| 16 | +Commands: |
| 17 | + push <image-dir> [--tag <tag>] Pack and push image to registry |
| 18 | + list [--filter <pattern>] List available tags in registry |
| 19 | +
|
| 20 | +Global options: |
| 21 | + --registry <url> Registry host (env: DSTACK_IMAGE_REGISTRY) |
| 22 | + --repo <name> Repository path (default: $REPO, env: DSTACK_IMAGE_REPO) |
| 23 | +
|
| 24 | +Examples: |
| 25 | + $0 --registry ghcr.io push ./dstack-0.5.8 |
| 26 | + $0 --registry ghcr.io push ./dstack-nvidia-0.5.8 --tag nvidia-0.5.8 |
| 27 | + $0 --registry ghcr.io list |
| 28 | + $0 --registry ghcr.io list --filter nvidia |
| 29 | +EOF |
| 30 | + exit 1 |
| 31 | +} |
| 32 | + |
| 33 | +# Parse global options first, then dispatch to subcommand |
| 34 | +COMMAND="" |
| 35 | +ARGS=() |
| 36 | +while [ $# -gt 0 ]; do |
| 37 | + case "$1" in |
| 38 | + --registry) REGISTRY="$2"; shift 2 ;; |
| 39 | + --repo) REPO="$2"; shift 2 ;; |
| 40 | + push|list) |
| 41 | + COMMAND="$1"; shift |
| 42 | + ARGS=("$@") |
| 43 | + break |
| 44 | + ;; |
| 45 | + -h|--help) usage ;; |
| 46 | + *) echo "Unknown option: $1"; usage ;; |
| 47 | + esac |
| 48 | +done |
| 49 | + |
| 50 | +[ -z "$COMMAND" ] && usage |
| 51 | +[ -z "$REGISTRY" ] && { echo "Error: --registry is required (or set DSTACK_IMAGE_REGISTRY)"; exit 1; } |
| 52 | + |
| 53 | +IMAGE_REF="${REGISTRY}/${REPO}" |
| 54 | + |
| 55 | +# --- PUSH --- |
| 56 | +cmd_push() { |
| 57 | + local image_dir="" |
| 58 | + local extra_tag="" |
| 59 | + |
| 60 | + while [ $# -gt 0 ]; do |
| 61 | + case "$1" in |
| 62 | + --tag) extra_tag="$2"; shift 2 ;; |
| 63 | + *) |
| 64 | + if [ -z "$image_dir" ]; then |
| 65 | + image_dir="$1"; shift |
| 66 | + else |
| 67 | + echo "Unexpected argument: $1"; exit 1 |
| 68 | + fi |
| 69 | + ;; |
| 70 | + esac |
| 71 | + done |
| 72 | + |
| 73 | + [ -z "$image_dir" ] && { echo "Error: image directory required"; exit 1; } |
| 74 | + [ -d "$image_dir" ] || { echo "Error: $image_dir is not a directory"; exit 1; } |
| 75 | + |
| 76 | + local metadata="$image_dir/metadata.json" |
| 77 | + [ -f "$metadata" ] || { echo "Error: metadata.json not found in $image_dir"; exit 1; } |
| 78 | + |
| 79 | + # Read image info |
| 80 | + local version |
| 81 | + version=$(python3 -c "import json; print(json.load(open('$metadata'))['version'])") |
| 82 | + local digest_file="$image_dir/digest.txt" |
| 83 | + local os_image_hash="" |
| 84 | + if [ -f "$digest_file" ]; then |
| 85 | + os_image_hash=$(tr -d '\n\r' < "$digest_file") |
| 86 | + fi |
| 87 | + |
| 88 | + # Detect image variant from directory name |
| 89 | + local dirname |
| 90 | + dirname=$(basename "$image_dir") |
| 91 | + local variant="" |
| 92 | + if [[ "$dirname" == *-nvidia-dev-* ]]; then |
| 93 | + variant="nvidia-dev" |
| 94 | + elif [[ "$dirname" == *-nvidia-* ]]; then |
| 95 | + variant="nvidia" |
| 96 | + elif [[ "$dirname" == *-dev-* ]]; then |
| 97 | + variant="dev" |
| 98 | + elif [[ "$dirname" == *-cloud-* ]]; then |
| 99 | + variant="cloud" |
| 100 | + fi |
| 101 | + |
| 102 | + # Build tag list |
| 103 | + local tags=() |
| 104 | + if [ -n "$extra_tag" ]; then |
| 105 | + tags+=("$extra_tag") |
| 106 | + else |
| 107 | + # Auto-generate tags from variant + version |
| 108 | + if [ -n "$variant" ]; then |
| 109 | + tags+=("${variant}-${version}") |
| 110 | + else |
| 111 | + tags+=("${version}") |
| 112 | + fi |
| 113 | + if [ -n "$os_image_hash" ]; then |
| 114 | + tags+=("sha256-${os_image_hash}") |
| 115 | + fi |
| 116 | + fi |
| 117 | + |
| 118 | + echo "=== Packing dstack guest image ===" |
| 119 | + echo " Source: $image_dir" |
| 120 | + echo " Version: $version" |
| 121 | + echo " Variant: ${variant:-standard}" |
| 122 | + echo " Hash: ${os_image_hash:-<none>}" |
| 123 | + echo " Tags: ${tags[*]}" |
| 124 | + echo "" |
| 125 | + |
| 126 | + # Create build context in a temp directory |
| 127 | + local tmp_dir |
| 128 | + tmp_dir=$(mktemp -d) |
| 129 | + trap "rm -rf $tmp_dir" EXIT |
| 130 | + |
| 131 | + # Collect all files |
| 132 | + local files=() |
| 133 | + for f in "$image_dir"/*; do |
| 134 | + [ -f "$f" ] && files+=("$(basename "$f")") |
| 135 | + done |
| 136 | + |
| 137 | + # Generate Dockerfile |
| 138 | + { |
| 139 | + echo "FROM scratch" |
| 140 | + for f in "${files[@]}"; do |
| 141 | + echo "COPY $f /" |
| 142 | + done |
| 143 | + echo "LABEL org.opencontainers.image.title=\"dstack-guest-image\"" |
| 144 | + echo "LABEL org.opencontainers.image.version=\"$version\"" |
| 145 | + echo "LABEL wang.dstack.os-image-hash=\"${os_image_hash}\"" |
| 146 | + echo "LABEL wang.dstack.variant=\"${variant:-standard}\"" |
| 147 | + } > "$tmp_dir/Dockerfile" |
| 148 | + |
| 149 | + # Copy files to build context |
| 150 | + for f in "${files[@]}"; do |
| 151 | + cp "$image_dir/$f" "$tmp_dir/" |
| 152 | + done |
| 153 | + |
| 154 | + # Build |
| 155 | + local primary_ref="${IMAGE_REF}:${tags[0]}" |
| 156 | + echo "Building: $primary_ref" |
| 157 | + docker build -t "$primary_ref" "$tmp_dir" |
| 158 | + |
| 159 | + # Tag additional tags |
| 160 | + for ((i=1; i<${#tags[@]}; i++)); do |
| 161 | + local ref="${IMAGE_REF}:${tags[$i]}" |
| 162 | + echo "Tagging: $ref" |
| 163 | + docker tag "$primary_ref" "$ref" |
| 164 | + done |
| 165 | + |
| 166 | + # Push all tags |
| 167 | + for tag in "${tags[@]}"; do |
| 168 | + local ref="${IMAGE_REF}:${tag}" |
| 169 | + echo "Pushing: $ref" |
| 170 | + docker push "$ref" |
| 171 | + done |
| 172 | + |
| 173 | + echo "" |
| 174 | + echo "=== Done ===" |
| 175 | + for tag in "${tags[@]}"; do |
| 176 | + echo " ${IMAGE_REF}:${tag}" |
| 177 | + done |
| 178 | +} |
| 179 | + |
| 180 | +# --- LIST --- |
| 181 | +cmd_list() { |
| 182 | + local filter="" |
| 183 | + while [ $# -gt 0 ]; do |
| 184 | + case "$1" in |
| 185 | + --filter) filter="$2"; shift 2 ;; |
| 186 | + *) echo "Unexpected argument: $1"; exit 1 ;; |
| 187 | + esac |
| 188 | + done |
| 189 | + |
| 190 | + echo "=== Tags for ${IMAGE_REF} ===" |
| 191 | + local tags_json |
| 192 | + tags_json=$(skopeo list-tags "docker://${IMAGE_REF}" 2>/dev/null || echo '{"Tags":[]}') |
| 193 | + |
| 194 | + if [ -n "$filter" ]; then |
| 195 | + echo "$tags_json" | python3 -c " |
| 196 | +import json, sys, re |
| 197 | +data = json.load(sys.stdin) |
| 198 | +for tag in sorted(data.get('Tags', data.get('tags', []))): |
| 199 | + if re.search('$filter', tag): |
| 200 | + print(f' {tag}') |
| 201 | +" |
| 202 | + else |
| 203 | + echo "$tags_json" | python3 -c " |
| 204 | +import json, sys |
| 205 | +data = json.load(sys.stdin) |
| 206 | +for tag in sorted(data.get('Tags', data.get('tags', []))): |
| 207 | + print(f' {tag}') |
| 208 | +" |
| 209 | + fi |
| 210 | +} |
| 211 | + |
| 212 | +# Dispatch |
| 213 | +case "$COMMAND" in |
| 214 | + push) cmd_push "${ARGS[@]}" ;; |
| 215 | + list) cmd_list "${ARGS[@]}" ;; |
| 216 | + *) usage ;; |
| 217 | +esac |
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