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linux-scripts/dokku-smoke-tests.sh
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#!/bin/bash
################################################################################
# Script Name: dokku-smoke-tests.sh
# Version: 1.0
# Description: Smoke test suite for Dokku PaaS — validates connectivity,
# app deployment lifecycle, plugin health, SSL certificates,
# and resource usage via the dokku CLI
#
# Author: Phil Connor
# Contact: contact@mylinux.work
# Website: https://mylinux.work
# License: MIT
#
# Prerequisites:
# - bash 4+
# - dokku binary (run on the Dokku host)
# - Root or dokku user access
#
# Usage:
# sudo ./dokku-smoke-tests.sh
# sudo ./dokku-smoke-tests.sh --skip-app --skip-ssl
# sudo ./dokku-smoke-tests.sh --format tap
# sudo ./dokku-smoke-tests.sh --format junit --junit-file results.xml
#
################################################################################
set -euo pipefail
# --- Defaults ---
SKIP_APP="${SKIP_APP_LIFECYCLE:-false}"
SKIP_SSL="${SKIP_SSL:-false}"
OUTPUT_FORMAT="${OUTPUT_FORMAT:-text}"
JUNIT_FILE="${JUNIT_FILE:-smoke-results.xml}"
DOKKU_DOMAIN="${DOKKU_DOMAIN:-}"
VERBOSE=false
USE_COLOR=true
TEST_APP_NAME=""
PASSED=0
FAILED=0
SKIPPED=0
START_TIME=""
JUNIT_RESULTS=()
TAP_RESULTS=()
TEST_NUM=0
# --- Colors ---
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[0;33m'
CYAN='\033[0;36m'
BOLD='\033[1m'
NC='\033[0m'
usage() {
cat <<EOF
Usage: $(basename "$0") [OPTIONS]
Smoke test suite for Dokku — run on the Dokku host as root or dokku user.
Options:
--skip-app Skip app lifecycle tests
--skip-ssl Skip SSL certificate checks
--format FORMAT Output: text (default), tap, junit
--junit-file FILE JUnit output path (default: smoke-results.xml)
--verbose Show debug output
--no-color Disable colored output
-h, --help Show this help
Environment:
SKIP_APP_LIFECYCLE Skip app lifecycle (same as --skip-app)
SKIP_SSL Skip SSL checks (same as --skip-ssl)
OUTPUT_FORMAT Output format (same as --format)
JUNIT_FILE JUnit output path
DOKKU_DOMAIN Dokku global domain (auto-detected if not set)
EOF
exit 0
}
# --- Argument parsing ---
while [[ $# -gt 0 ]]; do
case "$1" in
--skip-app) SKIP_APP=true; shift ;;
--skip-ssl) SKIP_SSL=true; shift ;;
--format) OUTPUT_FORMAT="$2"; shift 2 ;;
--junit-file) JUNIT_FILE="$2"; shift 2 ;;
--verbose) VERBOSE=true; shift ;;
--no-color) USE_COLOR=false; shift ;;
-h|--help) usage ;;
*) echo "Unknown option: $1"; usage ;;
esac
done
if [[ "$USE_COLOR" == "false" ]]; then
RED="" GREEN="" YELLOW="" CYAN="" BOLD="" NC=""
fi
# --- Helpers ---
debug() {
if [[ "$VERBOSE" == "true" ]]; then
echo -e " ${CYAN}[debug]${NC} $*" >&2
fi
}
pass() {
local suite="$1" msg="$2"
((TEST_NUM++)) || true
((PASSED++)) || true
case "$OUTPUT_FORMAT" in
tap) TAP_RESULTS+=("ok $TEST_NUM - [$suite] $msg") ;;
junit) JUNIT_RESULTS+=("<testcase classname=\"$suite\" name=\"$msg\" />") ;;
*) echo -e " ${GREEN}${NC} $msg" ;;
esac
}
fail() {
local suite="$1" msg="$2" detail="${3:-}"
((TEST_NUM++)) || true
((FAILED++)) || true
case "$OUTPUT_FORMAT" in
tap) TAP_RESULTS+=("not ok $TEST_NUM - [$suite] $msg") ;;
junit) JUNIT_RESULTS+=("<testcase classname=\"$suite\" name=\"$msg\"><failure message=\"$detail\">$detail</failure></testcase>") ;;
*) echo -e " ${RED}${NC} $msg${detail:+ — $detail}" ;;
esac
}
skip() {
local suite="$1" msg="$2"
((TEST_NUM++)) || true
((SKIPPED++)) || true
case "$OUTPUT_FORMAT" in
tap) TAP_RESULTS+=("ok $TEST_NUM - [$suite] $msg # SKIP") ;;
junit) JUNIT_RESULTS+=("<testcase classname=\"$suite\" name=\"$msg\"><skipped /></testcase>") ;;
*) echo -e " ${YELLOW}${NC} $msg — skipped" ;;
esac
}
suite_header() {
if [[ "$OUTPUT_FORMAT" == "text" ]]; then
echo -e "\n${BOLD}$1${NC}"
fi
}
# --- Cleanup ---
cleanup() {
if [[ -n "$TEST_APP_NAME" ]]; then
debug "Cleaning up test app: $TEST_APP_NAME"
dokku apps:destroy "$TEST_APP_NAME" --force >/dev/null 2>&1 || true
TEST_APP_NAME=""
fi
}
trap cleanup EXIT INT TERM
# --- Header ---
START_TIME=$(date +%s)
HOSTNAME_STR=$(hostname -f 2>/dev/null || hostname)
if [[ "$OUTPUT_FORMAT" == "text" ]]; then
echo -e "${BOLD}Dokku Smoke Tests${NC}"
echo "Host: $HOSTNAME_STR"
echo "Time: $(date -u +%Y-%m-%dT%H:%M:%SZ)"
fi
# =====================================================
# Suite 1: Connectivity
# =====================================================
suite_header "Connectivity"
# Check dokku binary
DOKKU_BIN=$(command -v dokku 2>/dev/null || true)
if [[ -n "$DOKKU_BIN" ]]; then
pass "Connectivity" "Dokku binary found — $DOKKU_BIN"
else
fail "Connectivity" "Dokku binary not found" "dokku is not in PATH"
echo -e "\n${RED}Cannot continue without dokku binary. Aborting.${NC}" >&2
exit 1
fi
# Check Docker daemon
if docker info >/dev/null 2>&1; then
pass "Connectivity" "Docker daemon running"
else
fail "Connectivity" "Docker daemon not running" "docker info failed"
fi
# Check dokku version
DOKKU_VERSION=$(dokku version 2>/dev/null | grep -oP 'dokku version \K[0-9]+\.[0-9]+\.[0-9]+' || true)
if [[ -z "$DOKKU_VERSION" ]]; then
# Try alternate format
DOKKU_VERSION=$(dokku version 2>/dev/null | grep -oP '[0-9]+\.[0-9]+\.[0-9]+' || true)
fi
if [[ -n "$DOKKU_VERSION" ]]; then
pass "Connectivity" "Dokku version — $DOKKU_VERSION"
else
fail "Connectivity" "Dokku version" "Could not parse version string"
fi
# Auto-detect global domain if not set
if [[ -z "$DOKKU_DOMAIN" ]]; then
DOKKU_DOMAIN=$(dokku domains:report --global 2>/dev/null | grep -i "global vhosts" | awk '{print $NF}' || true)
if [[ -z "$DOKKU_DOMAIN" ]]; then
DOKKU_DOMAIN=$(dokku domains:report --global 2>/dev/null | tail -1 | awk '{print $NF}' || true)
fi
debug "Auto-detected domain: $DOKKU_DOMAIN"
fi
# =====================================================
# Suite 2: App Lifecycle
# =====================================================
if [[ "$SKIP_APP" == "true" ]]; then
suite_header "App Lifecycle"
skip "App Lifecycle" "Create test app"
skip "App Lifecycle" "Deploy image"
skip "App Lifecycle" "App responding"
skip "App Lifecycle" "Delete test app"
else
suite_header "App Lifecycle"
TEST_APP_NAME="dokku-smoke-$(date +%s)"
debug "Test app name: $TEST_APP_NAME"
# Create app
create_output=$(dokku apps:create "$TEST_APP_NAME" 2>&1) || true
debug "Create output: $create_output"
if dokku apps:exists "$TEST_APP_NAME" >/dev/null 2>&1; then
pass "App Lifecycle" "Create test app — $TEST_APP_NAME"
else
fail "App Lifecycle" "Create test app" "$create_output"
skip "App Lifecycle" "Deploy image"
skip "App Lifecycle" "App responding"
skip "App Lifecycle" "Delete test app"
TEST_APP_NAME=""
SKIP_APP=true
fi
if [[ "$SKIP_APP" != "true" ]]; then
# Deploy image via git:from-image
deploy_output=$(dokku git:from-image "$TEST_APP_NAME" nginxdemos/hello 2>&1) || true
debug "Deploy output: $deploy_output"
# Check if app is running
app_running=false
for i in $(seq 1 12); do
sleep 5
debug "Waiting for app to start... attempt $i/12"
ps_output=$(dokku ps:report "$TEST_APP_NAME" 2>/dev/null || true)
if echo "$ps_output" | grep -qi "running"; then
app_running=true
break
fi
# Also check container status directly
running_count=$(dokku ps:report "$TEST_APP_NAME" 2>/dev/null | grep -i "running" | wc -l || echo "0")
if [[ "$running_count" -gt 0 ]]; then
app_running=true
break
fi
done
if [[ "$app_running" == "true" ]]; then
pass "App Lifecycle" "Deploy image — nginxdemos/hello deployed"
else
fail "App Lifecycle" "Deploy image" "App not running after 60s"
fi
# Verify HTTP response
if [[ -n "$DOKKU_DOMAIN" ]]; then
app_url="http://${TEST_APP_NAME}.${DOKKU_DOMAIN}"
debug "App URL: $app_url"
sleep 3
app_http=$(curl -s -o /dev/null -w "%{http_code}" \
--connect-timeout 10 --max-time 30 \
"$app_url" 2>/dev/null || echo "000")
if [[ "$app_http" == "200" ]]; then
pass "App Lifecycle" "App responding — HTTP 200 at ${TEST_APP_NAME}.${DOKKU_DOMAIN}"
else
fail "App Lifecycle" "App responding" "HTTP $app_http at $app_url"
fi
else
# No domain configured — check container port directly
debug "No global domain — checking container directly"
port=$(dokku proxy:ports "$TEST_APP_NAME" 2>/dev/null | grep -oP ':\K[0-9]+$' | head -1 || true)
if [[ -n "$port" ]]; then
app_http=$(curl -s -o /dev/null -w "%{http_code}" \
--connect-timeout 10 --max-time 30 \
"http://localhost:$port" 2>/dev/null || echo "000")
if [[ "$app_http" == "200" ]]; then
pass "App Lifecycle" "App responding — HTTP 200 on port $port"
else
fail "App Lifecycle" "App responding" "HTTP $app_http on port $port"
fi
else
skip "App Lifecycle" "App responding"
fi
fi
# Delete test app
delete_output=$(dokku apps:destroy "$TEST_APP_NAME" --force 2>&1) || true
debug "Delete output: $delete_output"
if ! dokku apps:exists "$TEST_APP_NAME" >/dev/null 2>&1; then
pass "App Lifecycle" "Delete test app — cleaned up"
TEST_APP_NAME=""
else
fail "App Lifecycle" "Delete test app" "Manual cleanup may be required"
fi
fi
fi
# =====================================================
# Suite 3: Plugin Health
# =====================================================
suite_header "Plugins"
plugin_list=$(dokku plugin:list 2>/dev/null || true)
debug "Plugin list: $plugin_list"
if [[ -n "$plugin_list" ]]; then
plugin_count=$(echo "$plugin_list" | grep -c "enabled" || echo "0")
pass "Plugins" "Plugin list — $plugin_count plugins installed"
else
fail "Plugins" "Plugin list" "dokku plugin:list failed"
fi
# Check core plugins
CORE_PLUGINS=("nginx-vhosts" "apps" "config" "ps")
for plugin in "${CORE_PLUGINS[@]}"; do
if echo "$plugin_list" | grep -q "$plugin"; then
pass "Plugins" "Core plugin present — $plugin"
else
fail "Plugins" "Core plugin present — $plugin" "Not found in plugin list"
fi
done
# =====================================================
# Suite 4: SSL
# =====================================================
if [[ "$SKIP_SSL" == "true" ]]; then
suite_header "SSL"
skip "SSL" "Letsencrypt plugin installed"
skip "SSL" "TLS certificate valid"
else
suite_header "SSL"
# Check if letsencrypt plugin is installed
le_installed=false
if echo "$plugin_list" | grep -qi "letsencrypt"; then
le_installed=true
pass "SSL" "Letsencrypt plugin installed"
else
skip "SSL" "Letsencrypt plugin installed"
fi
# Check global domain certificate
if [[ "$le_installed" == "true" && -n "$DOKKU_DOMAIN" ]]; then
# Check certificate via openssl if the domain resolves
cert_host="$DOKKU_DOMAIN"
cert_output=$(echo | openssl s_client -servername "$cert_host" -connect "${cert_host}:443" 2>/dev/null || true)
cert_enddate=$(echo "$cert_output" | openssl x509 -noout -enddate 2>/dev/null | cut -d= -f2 || true)
if [[ -n "$cert_enddate" ]]; then
expiry_epoch=$(date -d "$cert_enddate" +%s 2>/dev/null || echo "0")
now_epoch=$(date +%s)
days_left=$(( (expiry_epoch - now_epoch) / 86400 ))
if [[ "$days_left" -gt 0 ]]; then
pass "SSL" "TLS certificate valid — $days_left days remaining"
else
fail "SSL" "TLS certificate expired" "$days_left days past expiry"
fi
else
skip "SSL" "TLS certificate valid"
fi
else
skip "SSL" "TLS certificate valid"
fi
fi
# =====================================================
# Suite 5: Resources
# =====================================================
suite_header "Resources"
# Disk usage
disk_line=$(df -h / 2>/dev/null | tail -1 || true)
if [[ -n "$disk_line" ]]; then
disk_pct=$(echo "$disk_line" | awk '{print $5}' | tr -d '%')
disk_used=$(echo "$disk_line" | awk '{print $3}')
disk_total=$(echo "$disk_line" | awk '{print $2}')
pass "Resources" "Disk usage — ${disk_pct}% (${disk_used} / ${disk_total})"
else
fail "Resources" "Disk usage" "Could not read disk info"
fi
# Docker images
image_count=$(docker images -q 2>/dev/null | wc -l || echo "0")
pass "Resources" "Docker images — $image_count images"
# Docker volumes
volume_count=$(docker volume ls -q 2>/dev/null | wc -l || echo "0")
pass "Resources" "Docker volumes — $volume_count volumes"
# Docker containers
container_count=$(docker ps -q 2>/dev/null | wc -l || echo "0")
pass "Resources" "Docker containers — $container_count running"
# =====================================================
# Summary
# =====================================================
END_TIME=$(date +%s)
DURATION=$((END_TIME - START_TIME))
case "$OUTPUT_FORMAT" in
tap)
echo "TAP version 13"
echo "1..$TEST_NUM"
for line in "${TAP_RESULTS[@]}"; do
echo "$line"
done
echo "# passed: $PASSED"
echo "# failed: $FAILED"
echo "# skipped: $SKIPPED"
echo "# duration: ${DURATION}s"
;;
junit)
{
echo '<?xml version="1.0" encoding="UTF-8"?>'
echo "<testsuite name=\"Dokku Smoke Tests\" tests=\"$TEST_NUM\" failures=\"$FAILED\" skipped=\"$SKIPPED\" time=\"$DURATION\" timestamp=\"$(date -u +%Y-%m-%dT%H:%M:%SZ)\">"
echo " <properties>"
echo " <property name=\"host\" value=\"$HOSTNAME_STR\" />"
echo " </properties>"
for result in "${JUNIT_RESULTS[@]}"; do
echo " $result"
done
echo "</testsuite>"
} > "$JUNIT_FILE"
echo "JUnit results written to $JUNIT_FILE"
;;
*)
echo ""
echo "────────────────────────────────────────"
echo -e "Summary ${BOLD}$HOSTNAME_STR${NC}"
echo -e " ${GREEN}$PASSED passed${NC} ${RED}$FAILED failed${NC} ${YELLOW}$SKIPPED skipped${NC} (${DURATION}s)"
echo "────────────────────────────────────────"
if [[ "$FAILED" -eq 0 ]]; then
echo -e "${GREEN}All tests passed.${NC}"
else
echo -e "${RED}Some tests failed.${NC}"
fi
;;
esac
exit $((FAILED > 0 ? 1 : 0))