active return 0 } # checkBucketExists ($bucket) # Check if the bucket exists, by using the exit code of `mc ls` checkBucketExists() { BUCKET=$1 CMD=$(${MC} ls myminio/$BUCKET > /dev/null 2>&1) return $? } # createBucket ($bucket, $policy, $purge) # Ensure bucket exists, purging if asked to createBucket() { BUCKET=$1 POLICY=$2 PURGE=$3 VERSIONING=$4 # Purge the bucket, if set & exists # Since PURGE is user input, check explicitly for `true` if [ $PURGE = true ]; then if checkBucketExists $BUCKET ; then...

active return 0 } # checkBucketExists ($bucket) # Check if the bucket exists, by using the exit code of `mc ls` checkBucketExists() { BUCKET=$1 CMD=$(${MC} ls myminio/$BUCKET > /dev/null 2>&1) return $? } # createBucket ($bucket, $policy, $purge) # Ensure bucket exists, purging if asked to createBucket() { BUCKET=$1 POLICY=$2 PURGE=$3 VERSIONING=$4 # Purge the bucket, if set & exists # Since PURGE is user input, check explicitly for `true` if [ $PURGE = true ]; then if checkBucketExists $BUCKET ; then...

    Ordering<Number> unusedK = objects.compound(objects.compound(numbers));

    // You can also arbitrarily assign a more restricted type - not an intended
    // feature, exactly, but unavoidable (I think) and harmless
    Ordering<Integer> unusedL = objects.compound(numbers);

    // This correctly doesn't work:
    // Ordering<Object> unusedM = numbers.compound(objects);

    Ordering<Number> unusedK = objects.compound(objects.compound(numbers));

    // You can also arbitrarily assign a more restricted type - not an intended
    // feature, exactly, but unavoidable (I think) and harmless
    Ordering<Integer> unusedL = objects.compound(numbers);

    // This correctly doesn't work:
    // Ordering<Object> unusedM = numbers.compound(objects);

active return 0 } # checkBucketExists ($bucket) # Check if the bucket exists, by using the exit code of `mc ls` checkBucketExists() { BUCKET=$1 CMD=$(${MC} ls myminio/$BUCKET > /dev/null 2>&1) return $? } # createBucket ($bucket, $policy, $purge) # Ensure bucket exists, purging if asked to createBucket() { BUCKET=$1 POLICY=$2 PURGE=$3 VERSIONING=$4 # Purge the bucket, if set & exists # Since PURGE is user input, check explicitly for `true` if [ $PURGE = true ]; then if checkBucketExists $BUCKET ; then...

active return 0 } # checkBucketExists ($bucket) # Check if the bucket exists, by using the exit code of `mc ls` checkBucketExists() { BUCKET=$1 CMD=$(${MC} ls myminio/$BUCKET > /dev/null 2>&1) return $? } # createBucket ($bucket, $policy, $purge) # Ensure bucket exists, purging if asked to createBucket() { BUCKET=$1 POLICY=$2 PURGE=$3 VERSIONING=$4 # Purge the bucket, if set & exists # Since PURGE is user input, check explicitly for `true` if [ $PURGE = true ]; then if checkBucketExists $BUCKET ; then...

active return 0 } # checkBucketExists ($bucket) # Check if the bucket exists, by using the exit code of `mc ls` checkBucketExists() { BUCKET=$1 CMD=$(${MC} ls myminio/$BUCKET > /dev/null 2>&1) return $? } # createBucket ($bucket, $policy, $purge) # Ensure bucket exists, purging if asked to createBucket() { BUCKET=$1 POLICY=$2 PURGE=$3 VERSIONING=$4 # Purge the bucket, if set & exists # Since PURGE is user input, check explicitly for `true` if [ $PURGE = true ]; then if checkBucketExists $BUCKET ; then...

active return 0 } # checkBucketExists ($bucket) # Check if the bucket exists, by using the exit code of `mc ls` checkBucketExists() { BUCKET=$1 CMD=$(${MC} ls myminio/$BUCKET > /dev/null 2>&1) return $? } # createBucket ($bucket, $policy, $purge) # Ensure bucket exists, purging if asked to createBucket() { BUCKET=$1 POLICY=$2 PURGE=$3 VERSIONING=$4 # Purge the bucket, if set & exists # Since PURGE is user input, check explicitly for `true` if [ $PURGE = true ]; then if checkBucketExists $BUCKET ; then...

active return 0 } # checkBucketExists ($bucket) # Check if the bucket exists, by using the exit code of `mc ls` checkBucketExists() { BUCKET=$1 CMD=$(${MC} ls myminio/$BUCKET > /dev/null 2>&1) return $? } # createBucket ($bucket, $policy, $purge) # Ensure bucket exists, purging if asked to createBucket() { BUCKET=$1 POLICY=$2 PURGE=$3 VERSIONING=$4 # Purge the bucket, if set & exists # Since PURGE is user input, check explicitly for `true` if [ $PURGE = true ]; then if checkBucketExists $BUCKET ; then...

CMD ["fastapi", "run", "app/main.py", "--port", "80"]
```

⛔️ **Shell** form:

```Dockerfile
# ⛔️ Don't do this
CMD fastapi run app/main.py --port 80
```

Make sure to always use the **exec** form to ensure that FastAPI can shutdown gracefully and [lifespan events](../advanced/events.md){.internal-link target=_blank} are triggered.