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[docker-in-docker]-docker_compose-fallback-github api
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#!/bin/bash | ||
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# Optional: Import test library | ||
source dev-container-features-test-lib | ||
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HL="\033[1;33m" | ||
N="\033[0;37m" | ||
echo -e "\n👉${HL} docker-compose version as installed by docker-in-docker feature${N}" | ||
check "docker-compose" bash -c "docker-compose version" | ||
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architecture="$(dpkg --print-architecture)" | ||
case "${architecture}" in | ||
amd64) target_compose_arch=x86_64 ;; | ||
arm64) target_compose_arch=aarch64 ;; | ||
*) | ||
echo "(!) Docker in docker does not support machine architecture '$architecture'. Please use an x86-64 or ARM64 machine." | ||
exit 1 | ||
esac | ||
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docker_compose_path="/usr/local/bin/docker-compose" | ||
cli_plugins_dir="${docker_home}/cli-plugins" | ||
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# Figure out correct version of a three part version number is not passed | ||
find_version_from_git_tags() { | ||
local variable_name=$1 | ||
local requested_version=${!variable_name} | ||
if [ "${requested_version}" = "none" ]; then return; fi | ||
local repository=$2 | ||
local prefix=${3:-"tags/v"} | ||
local separator=${4:-"."} | ||
local last_part_optional=${5:-"false"} | ||
if [ "$(echo "${requested_version}" | grep -o "." | wc -l)" != "2" ]; then | ||
local escaped_separator=${separator//./\\.} | ||
local last_part | ||
if [ "${last_part_optional}" = "true" ]; then | ||
last_part="(${escaped_separator}[0-9]+)?" | ||
else | ||
last_part="${escaped_separator}[0-9]+" | ||
fi | ||
local regex="${prefix}\\K[0-9]+${escaped_separator}[0-9]+${last_part}$" | ||
local version_list="$(git ls-remote --tags ${repository} | grep -oP "${regex}" | tr -d ' ' | tr "${separator}" "." | sort -rV)" | ||
if [ "${requested_version}" = "latest" ] || [ "${requested_version}" = "current" ] || [ "${requested_version}" = "lts" ]; then | ||
declare -g ${variable_name}="$(echo "${version_list}" | head -n 1)" | ||
else | ||
set +e | ||
declare -g ${variable_name}="$(echo "${version_list}" | grep -E -m 1 "^${requested_version//./\\.}([\\.\\s]|$)")" | ||
set -e | ||
fi | ||
fi | ||
if [ -z "${!variable_name}" ] || ! echo "${version_list}" | grep "^${!variable_name//./\\.}$" > /dev/null 2>&1; then | ||
err "Invalid ${variable_name} value: ${requested_version}\nValid values:\n${version_list}" >&2 | ||
exit 1 | ||
fi | ||
echo "${variable_name}=${!variable_name}" | ||
} | ||
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# Use semver logic to decrement a version number then look for the closest match | ||
find_prev_version_from_git_tags() { | ||
local variable_name=$1 | ||
local current_version=${!variable_name} | ||
local repository=$2 | ||
# Normally a "v" is used before the version number, but support alternate cases | ||
local prefix=${3:-"tags/v"} | ||
# Some repositories use "_" instead of "." for version number part separation, support that | ||
local separator=${4:-"."} | ||
# Some tools release versions that omit the last digit (e.g. go) | ||
local last_part_optional=${5:-"false"} | ||
# Some repositories may have tags that include a suffix (e.g. actions/node-versions) | ||
local version_suffix_regex=$6 | ||
# Try one break fix version number less if we get a failure. Use "set +e" since "set -e" can cause failures in valid scenarios. | ||
set +e | ||
major="$(echo "${current_version}" | grep -oE '^[0-9]+' || echo '')" | ||
minor="$(echo "${current_version}" | grep -oP '^[0-9]+\.\K[0-9]+' || echo '')" | ||
breakfix="$(echo "${current_version}" | grep -oP '^[0-9]+\.[0-9]+\.\K[0-9]+' 2>/dev/null || echo '')" | ||
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if [ "${minor}" = "0" ] && [ "${breakfix}" = "0" ]; then | ||
((major=major-1)) | ||
declare -g ${variable_name}="${major}" | ||
# Look for latest version from previous major release | ||
find_version_from_git_tags "${variable_name}" "${repository}" "${prefix}" "${separator}" "${last_part_optional}" | ||
# Handle situations like Go's odd version pattern where "0" releases omit the last part | ||
elif [ "${breakfix}" = "" ] || [ "${breakfix}" = "0" ]; then | ||
((minor=minor-1)) | ||
declare -g ${variable_name}="${major}.${minor}" | ||
# Look for latest version from previous minor release | ||
find_version_from_git_tags "${variable_name}" "${repository}" "${prefix}" "${separator}" "${last_part_optional}" | ||
else | ||
((breakfix=breakfix-1)) | ||
if [ "${breakfix}" = "0" ] && [ "${last_part_optional}" = "true" ]; then | ||
declare -g ${variable_name}="${major}.${minor}" | ||
else | ||
declare -g ${variable_name}="${major}.${minor}.${breakfix}" | ||
fi | ||
fi | ||
set -e | ||
} | ||
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# Function to fetch the version released prior to the latest version | ||
get_previous_version() { | ||
repo_url=$1 | ||
try_api=$2 | ||
# Fetch the response headers for the rate limit information and store them in a variable | ||
headers=$(curl -s --head -H "Accept: application/json" "$repo_url") | ||
# Extract the rate limit information from the headers | ||
limit=$(echo "$headers" | awk '/x-ratelimit-limit/{print $2}') | ||
remaining=$(echo "$headers" | awk '/x-ratelimit-remaining/{print $2}') | ||
reset_epoch=$(echo "$headers" | awk '/x-ratelimit-reset/{print $2}') | ||
reset_time=$(date -d@"$reset_epoch" +"%Y-%m-%d %H:%M:%S" 2>/dev/null) | ||
# remove trailing \r from $remaining | ||
remaining=$(echo "$remaining" | tr -d '[:space:]') | ||
# convert remaining to an int value for comparison to be greater than or less than 0 | ||
remaining_int=$(printf "%d" "$remaining") | ||
if [[ "$try_api" != "try_valid_from_api" ]]; then | ||
remaining_int=0 | ||
fi | ||
if [[ $remaining_int -gt 0 ]]; then | ||
curl_output=$(curl -s "$repo_url" | jq -r 'del(.[].assets) | .[0].tag_name') | ||
echo "version: ${curl_output}" | ||
else | ||
echo "Rate limit exceeded. Fallback implemented." | ||
fi | ||
} | ||
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install_using_get_previous_version() { | ||
mode=$1 | ||
output=$(get_previous_version "https://api.github.com/repos/docker/compose/releases" "$mode") | ||
if [[ $output == *"Rate limit exceeded. Fallback implemented."* ]]; then | ||
echo "Error: Getting Previous Version by using github api failed!" | ||
find_prev_version_from_git_tags compose_version "https://github.com/docker/compose" "tags/v" | ||
else | ||
echo "Success: Fetched fallback version from GitHub Api successfully!" | ||
filtered_output=$(echo $output | grep "version:"); | ||
previous_version=$(echo "$filtered_output" | sed -n 's/version: //p'); | ||
compose_version=${previous_version#v} | ||
fi | ||
echo -e "\nAttempting to install ${compose_version}" | ||
curl -L "https://github.com/docker/compose/releases/download/v${compose_version}/docker-compose-linux-${target_compose_arch}" -o ${docker_compose_path} | ||
} | ||
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install_docker_compose() { | ||
mode=$1 | ||
compose_version="2.25.xyz" | ||
echo "(*) Installing docker-compose ${compose_version}..." | ||
curl -L "https://github.com/docker/compose/releases/download/v${compose_version}/docker-compose-linux-${target_compose_arch}" -o ${docker_compose_path} | ||
if grep -q "Not Found" "${docker_compose_path}"; then | ||
echo -e "\n(!) Failed to fetch the latest artifacts for docker-compose v${compose_version}..." | ||
install_using_get_previous_version "$mode" | ||
fi | ||
} | ||
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chmod +x ${docker_compose_path} | ||
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# Download the SHA256 checksum | ||
DOCKER_COMPOSE_SHA256="$(curl -sSL "https://github.com/docker/compose/releases/download/v${compose_version}/docker-compose-linux-${target_compose_arch}.sha256" | awk '{print $1}')" | ||
echo "${DOCKER_COMPOSE_SHA256} ${docker_compose_path}" > docker-compose.sha256sum | ||
sha256sum -c docker-compose.sha256sum --ignore-missing | ||
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mkdir -p ${cli_plugins_dir} | ||
cp ${docker_compose_path} ${cli_plugins_dir} | ||
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echo -e "\n👉${HL} docker-compose version as installed by docker-in-docker test ( installing by github api ) ${N}" | ||
install_docker_compose "try_valid_from_api" | ||
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check "docker-compose" bash -c "docker-compose version" | ||
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echo -e "\n👉${HL} docker-compose version as installed by docker-in-docker test ( installing by find_prev_version_from_git_tags ) ${N}" | ||
install_docker_compose | ||
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check "docker-compose" bash -c "docker-compose version" |
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