How to fix OCI runtime exec failed: exec failed: unable to start container process: exec: "curl": executable file not found in $PATH in Docker

# View container health status and recent errors
docker inspect --format='{{json .State.Health}}' <container_name> | jq

# Check the Dockerfile HEALTHCHECK instruction
grep -i healthcheck Dockerfile

# Check docker-compose.yml health check configuration
grep -A 5 healthcheck docker-compose.yml

# Instead of curl
HEALTHCHECK CMD wget -qO- http://localhost:8080/health || exit 1

# Spider mode (doesn't download content, just checks URL exists)
HEALTHCHECK CMD wget --no-verbose --tries=1 --spider http://localhost:8080/health || exit 1

healthcheck:
  test: ["CMD-SHELL", "wget -qO- http://localhost:8080/health || exit 1"]
  interval: 30s
  timeout: 10s
  retries: 3
  start_period: 40s

HEALTHCHECK CMD nc -z localhost 8080 || exit 1

healthcheck:
  test: ["CMD", "nc", "-z", "localhost", "8080"]
  interval: 10s
  timeout: 5s
  retries: 3

FROM node:20-alpine

# Install curl
RUN apk add --no-cache curl

# Your application setup...
COPY . .

HEALTHCHECK CMD curl -f http://localhost:8080/health || exit 1

FROM node:20

# Install curl (often already included, but just in case)
RUN apt-get update && apt-get install -y --no-install-recommends curl \
    && rm -rf /var/lib/apt/lists/*

HEALTHCHECK CMD curl -f http://localhost:8080/health || exit 1

HEALTHCHECK CMD node -e "require('http').get('http://localhost:8080/health', (r) => process.exit(r.statusCode === 200 ? 0 : 1)).on('error', () => process.exit(1))"

HEALTHCHECK CMD python -c "import urllib.request; urllib.request.urlopen('http://localhost:8080/health')" || exit 1

HEALTHCHECK CMD php -r "file_get_contents('http://localhost:8080/health');" || exit 1

package main

import (
    "net/http"
    "os"
    "time"
)

func main() {
    client := &http.Client{Timeout: 5 * time.Second}
    url := "http://localhost:8080/health"
    if len(os.Args) > 1 {
        url = os.Args[1]
    }
    resp, err := client.Get(url)
    if err != nil || resp.StatusCode != 200 {
        os.Exit(1)
    }
    os.Exit(0)
}

# Build stage
FROM golang:1.21 AS healthcheck-builder
WORKDIR /build
COPY healthcheck.go .
RUN CGO_ENABLED=0 GOOS=linux go build -a -ldflags '-s -w' -o healthcheck healthcheck.go

# Final stage (distroless)
FROM gcr.io/distroless/static:nonroot
COPY --from=healthcheck-builder /build/healthcheck /healthcheck
COPY --from=builder /app/myapp /app/myapp
HEALTHCHECK CMD ["/healthcheck"]

COPY --from=ghcr.io/tarampampam/microcheck:1 /bin/httpcheck /healthcheck
HEALTHCHECK CMD ["/healthcheck", "http://localhost:8080/health"]

# Rebuild the image
docker build -t myapp:latest .

# Run with health check enabled
docker run -d --name test-healthcheck myapp:latest

# Wait for health check to run and check status
sleep 45
docker ps --format "table {{.Names}}\t{{.Status}}"

# View detailed health check results
docker inspect --format='{{json .State.Health}}' test-healthcheck | jq

# If unhealthy, check the logs for errors
docker inspect test-healthcheck | jq '.State.Health.Log[-3:]'

{
  "Status": "healthy",
  "FailingStreak": 0,
  "Log": [...]
}