Exemple #1
0
int lock_or_unlock(const int do_lock, const gchar *manifest_file, const gchar *coordinator_profile_path, gchar *profile)
{
    GPtrArray *distribution_array;
    GPtrArray *target_array;
    int exit_status;
    
    if(manifest_file == NULL)
    {
        /* Get current username */
        char *username = (getpwuid(geteuid()))->pw_name;
        
        /* If no manifest file has been provided, try opening the last deployed one */
        gchar *old_manifest_file = determine_previous_manifest_file(coordinator_profile_path, username, profile);
        
        if(old_manifest_file == NULL)
        {
            g_printerr("[coordinator]: No previous manifest file exists, so no locking operations will be executed!\n");
            return 0;
        }
        else
        {
            distribution_array = generate_distribution_array(old_manifest_file);
            target_array = generate_target_array(old_manifest_file);
            g_free(old_manifest_file);
        }
    }
    else
    {
        /* Open the provided manifest */
        distribution_array = generate_distribution_array(manifest_file);
        target_array = generate_target_array(manifest_file);
    }
    
    if(distribution_array == NULL || target_array == NULL)
    {
        g_printerr("ERROR: Cannot open manifest file!\n");
        exit_status = 1;
    }
    else
    {
        /* Override SIGINT's behaviour to allow stuff to be rollbacked in case of an interruption */
        set_flag_on_interrupt();
        
        /* Do the locking */
        if(do_lock)
            exit_status = lock(distribution_array, target_array, profile);
        else
            exit_status = unlock(distribution_array, target_array, profile);
    }
    
    /* Cleanup */
    delete_target_array(target_array);
    delete_distribution_array(distribution_array);

    /* Return exit status */
    return exit_status;
}
Exemple #2
0
int activate_system(const gchar *new_manifest, const gchar *old_manifest, const gchar *coordinator_profile_path, gchar *profile, const gboolean no_upgrade, const gboolean no_rollback, const gboolean dry_run)
{
    Manifest *manifest = create_manifest(new_manifest, MANIFEST_ACTIVATION_FLAG, NULL, NULL);
    
    if(manifest == NULL)
    {
        g_printerr("[coordinator]: Error opening manifest file!\n");
        return 1;
    }
    else
    {
        TransitionStatus status;
        gchar *old_manifest_file;
        GPtrArray *old_activation_mappings;
        
        /* If no previous configuration is given, check whether we have one in the coordinator profile, otherwise use the given one */
        if(old_manifest == NULL)
            old_manifest_file = determine_previous_manifest_file(coordinator_profile_path, profile);
        else
            old_manifest_file = g_strdup(old_manifest);

        /* If we have an old configuration -> open it */
        if(!no_upgrade && old_manifest_file != NULL)
        {
            g_print("[coordinator]: Doing an upgrade from previous manifest file: %s\n", old_manifest_file);
            old_activation_mappings = create_activation_array(old_manifest_file);
        }
        else
        {
            g_print("[coordinator]: Doing an installation from scratch\n");
            old_activation_mappings = NULL;
        }

        /* Override SIGINT's behaviour to allow stuff to be rollbacked in case of an interruption */
        set_flag_on_interrupt();
        
        /* Execute transition */
        g_print("[coordinator]: Executing the transition to the new deployment state\n");
        
        if((status = transition(manifest->activation_array, old_activation_mappings, manifest->target_array, no_rollback, dry_run)) == TRANSITION_SUCCESS)
            g_printerr("[coordinator]: The new configuration has been successfully activated!\n");
        else
        {
            g_printerr("[coordinator]: ERROR: Transition phase execution failed!\n");
            
            if(old_manifest_file != NULL && status == TRANSITION_ROLLBACK_FAILED)
            {
                g_printerr("The rollback failed! This means the system is now inconsistent! Please\n");
                g_printerr("manually diagnose the errors before doing another redeployment!\n\n");
                
                g_printerr("When the problems have been solved, the rollback can be triggered again, by\n");
                g_printerr("running:\n\n");
                g_printerr("$ disnix-activate --no-rollback -p %s ", profile);
                
                if(coordinator_profile_path != NULL)
                    g_printerr("--coordinator-profile-path %s ", coordinator_profile_path);
                
                g_printerr("-o %s %s\n\n", new_manifest, old_manifest_file);
            }
        }
        
        /* Cleanup */
        g_free(old_manifest_file);
        delete_manifest(manifest);
        delete_activation_array(old_activation_mappings);

        /* Return the transition status */
        return status;
    }
}