dps.sh

#!/bin/bash

# Determine Docker options based on the first argument
case "$1" in
  -a)
    PS_OPTS="-a"
    ;;
  -s)
    PS_OPTS="--filter status=exited"
    ;;
  *)
    PS_OPTS=""
    ;;
esac

# Fetch container IDs and basic info from docker ps
docker_ps_output=$(docker ps $PS_OPTS --format '{{.ID}}|{{.Names}}|{{.Image}}|{{.RunningFor}}')

# Define the header
HEADER="CONTAINER ID|NAMES|IP ADDRESS|IMAGE|RUNNING FOR"

# Check if there are any containers
if [ -z "$docker_ps_output" ]; then
    echo "No containers to display."
    exit 0
fi

# Initialize output with header
output="$HEADER"$'\n'

# Process each container
while IFS='|' read -r id name image running_for; do
    # Get IP addresses via docker inspect and format them properly
    ip_address=$(docker inspect -f \
    '{{range $k, $v := .NetworkSettings.Networks}}{{if $v.IPAddress}}{{if ne $v.IPAddress ""}}{{$v.IPAddress}} {{end}}{{end}}{{end}}' \
    "$id" | sed 's/ $//' | tr ' ' ',')
    if [ -z "$ip_address" ]; then
        ip_address="N/A"
    fi
    # Remove 'ago' from running_for
    running_for=$(echo "$running_for" | sed 's/ ago//')
    # Append the data line to the output
    output+="$id|$name|$ip_address|$image|$running_for"$'\n'
done <<< "$docker_ps_output"

# Use column to format the output
formatted_output=$(echo "$output" | column -t -s '|')

# Add separator line after header
# Extract the header line from the formatted output
header_line=$(echo "$formatted_output" | head -n 1)
# Generate a separator line with dashes matching the length of the header line
separator_line=$(echo "$header_line" | sed 's/./-/g')
# Combine header, separator, and the rest of the output
final_output=$(echo "$formatted_output" | sed "1 a\\
$separator_line
")

# Display the final output
echo "$final_output"