protected GenericContainer<?> startContainerWithCommand(String shellCommand, WaitStrategy waitStrategy) {
        return startContainerWithCommand(shellCommand, waitStrategy, 8080);
    }
Starts a GenericContainer with the Alpine image, passing the given {@code shellCommand} as
a parameter to {@literal sh -c} (the container CMD) and apply a give wait strategy.
Note that the timeout will be overwritten if any with {@link #WAIT_TIMEOUT_MILLIS}.
@param shellCommand the shell command to execute
@param waitStrategy The wait strategy to apply
@return the (unstarted) container
core/src/test/java/org/testcontainers/junit/wait/strategy/AbstractWaitStrategyTest.java